51页17.The doctors are trying ----a new kind of medicine to c

番外4872022-10-04 11:39:545条回答

51页17.The doctors are trying ----a new kind of medicine to cure the patient
A.using B.to use C.use 理由

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s72g 共回答了15个问题 | 采纳率93.3%: trying+using首先不合理
语法错误排除.
这个句子是现在进行时态
单单use结构不完整.
故选b.
try to do sth.
固定搭配词组; 1年前