()是名词性偏正短语。
A、他是会来的
B、他的话正确
C、他的准时到来
D、跑来上海一趟
参考答案:C
None of the assistants were _____ when the professor needed some help. [ ]
A. available
B. accessible
C. inevitable
D. appropriate
药用部位是花蕾的药物是()
A.天花粉
B.香薷
C.丁香
D.小茴香
E.荜茇