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If you want to lose weight, you should not take such food______really necessary.A．as isB．a
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If separating effect is not good, which measure should be taken ____.A.working at interval
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Under no ______ should we seek temporary economic development at the expense of the enviro
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We must take precautious measures to prevent the river______.A．to be pollutedB．from pollut
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The measures people should take to deal with the drought include______.A．making new econom
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The style. of "Visitors should go up the stairs at once. " is______.A．formalB．consultative
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The medicine was very _____, and he recovered at once after taking it.A.efficientB.good
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