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type=question
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textarea="datatrue datafalse explain"
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iEdit="explain"
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asis="explain"
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:Choose the true sentence from a list.
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A number of sentences are picked from a list.
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We must identify and note those that are true.
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Good and bad sentences are selected randomly from respective lists.
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The number of good sentences in each presentation is not necessarily fixed.
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<p>
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The more data (sentences) are abundant,
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 the more the exercise is random and repeatable.
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But you can also do exercises with just the right phrases but no more.
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It will be in this case a multiple choice with several good choices.
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</p>
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<p class="wims_credits">Author of the model: Gang Xiao <qualite@wimsedu.info></p>
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:%%%%%%%%%%%%%%%%%      ATTENTION      %%%%%%%%%%%%%%%%%%%%
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Remove the above header if you destroy the model tags! (The lines starting
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with a ':'.) Otherwise the exercise might not be taken back by Createxo.
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:%%%%%%%% Example parameters to be redefined %%%%%%%%%%%%%%%%%
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:\title{Multiple true-false}
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:\author{XIAO, Gang}
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:\email{qualite@wimsedu.info}
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:\credits{}
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:Number of sentences to present.
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\integer{tot=4}
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:Minimum of true sentences in each exercise. At least 1.
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\integer{mintrue=1}
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:Minimum of false sentences in each exercise. At least 1.
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\integer{minfalse=1}
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:True sentences. One sentence per line, semi-colon not allowed.
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Avoid long sentences!
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$embraced_randitem
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\matrix{datatrue=
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At equal voltage, the electric current passing through a resistor is inversely proportional to its resistance.
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At equal current, the voltage on a resistor is proportional to its resistance.
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The current flowing through a resistor is proportional to the applied voltage.
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The power dissipated by a resistor is proportional to the square of the applied voltage.
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The power dissipated by a resistor is proportional to the square of the current.
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}
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:False sentences. One sentence per line, semi-colon not allowed.
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Avoid long sentences!
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$embraced_randitem
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\matrix{datafalse=
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At equal voltage, the current flowing through a resistor is proportional to its resistance.
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At equal voltage, the current flowing through a resistor is independent of its resistance.
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The current passing through a diode is proportional to the applied voltage.
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The power dissipated by a resistor is proportional to the applied voltage.
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The power dissipated by a resistor is proportional to the current.
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}
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:Option
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Add the word <span class="tt wims_code_words">split</span> if you want to give a
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partial score for partially correct answers.
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\text{option=split}
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:Instructions
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$embraced_randitem
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\text{explain=asis(Which of the following statements are true? Check them.)}
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:Embraced random items
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$embraced_randitem
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\text{accolade=item(1,1 yes,
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2 no)}
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:%%%%%%%%%%%%%% Nothing to modify before the statement %%%%%%%%%%%%%%%%
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\text{accolade=wims(word 1 of \accolade)}
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\text{datatrue=wims(nonempty rows \datatrue)}
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\text{datafalse=wims(nonempty rows \datafalse)}
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\integer{truecnt=rows(\datatrue)}
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\integer{falsecnt=rows(\datafalse)}
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\integer{tot=\tot > min(\truecnt,\falsecnt)?min(\truecnt,\falsecnt)}
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\integer{mintrue=\mintrue<1?1}
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\integer{minfalse=\minfalse<1?1}
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\integer{mintrue=\mintrue>\tot-1?\tot-1}
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\integer{minfalse=\minfalse>\tot-1?\tot-1}
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\integer{tot<\mintrue+\minfalse?\mintrue+\minfalse}
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\text{tsh=shuffle(\truecnt)}
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\text{fsh=shuffle(\falsecnt)}
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\text{true=row(\tsh,\datatrue)}
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\text{false=row(\fsh,\datafalse)}
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\integer{truepick=randint(\mintrue..\tot-\minfalse)}
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\text{pick=row(1..\truepick,\true);row(1..\tot-\truepick,\false)}
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\text{ind=wims(makelist 1 for x=1 to \truepick),wims(makelist 0 for x=1 to \tot-\truepick)}
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\text{sh=shuffle(\tot)}
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\text{ind=item(\sh,\ind)}
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\text{pick=row(\sh,\pick)}
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\text{pick=\accolade=1 ? wims(embraced randitem \pick)}
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\text{ans=positionof(1,\ind)}
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\text{list=wims(values x for x=1 to \tot)}
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\text{explain=\accolade=1 ? wims(embraced randitem \explain)}
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:%%%%%%%%%%%%% Now the statement in html. %%%%%%%%%%%%%%%%%%%%
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::You don't need to modify this in general.
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\statement{
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<div class="instruction">
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\explain
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</div>
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<ul style="list-style-type:none">
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\for{i=1 to \tot}{
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 <li>
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  \embed{reply 1,\i}. &nbsp;\pick[\i;]
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  </li>
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}
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</ul>
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}
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:%%%%%%%%%%%%% Nothing to modify after. %%%%%%%%%%%%%%%%%
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\answer{The reply}{\ans;\list}{type=checkbox}{option=\option}