题目内容


The medicine ___ as soon as you take it. But it ____ the blood.
A．brings into effect; effectsB．takes effect; has a bad effect on
C．comes into effect; has little effect onD．is carried into effect; has much effect on
B
考查短语。takes effect起作用，生效；have a bad effect on对……有坏的影响。句意：这种药你一服用就起作用，但对你的血液有坏的影响。
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