问题
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One function of the thermal expansion valve is to________.A.act as a pilot from the soleno
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Power is defined as the _____.A.rate of doing workB.amount of force needed to overcome fri
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The passage is mainly concerned with______.A.the components of sunspotsB.sunspots acting l
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The first thing to do after receiving a credit card is to______.A.sign the back of itB.act
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One of the contributions Searle has made is his classification of______act.A.locutionaryB.
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The metropolitan police force of London is under the direct control of______.A.the Prime M
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