The medicine has many functions,______are unknown to us.A、some of whichB、that s

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问题 The medicine has many functions,______are unknown to us.

选项 A、some of which
B、that some of them
C、of which some of them
D、which of them

答案 A

解析

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由于药粉不易被儿童吞服，因此专为儿童设计的药物通常是药水。Medicinedesignedforchildrenisusuallyliquid-ba