You worry about him. He will get well soon. [ ]
A. needn't
B. can't
C. mustn't
答案:A
The old men in hospital ______________.
A.take good care of
B.take good care
C.are taken good care
D.are taken good care of
中药半夏粉末,在经过透化后,在显微镜下可见()
A.草酸钙针晶
B.草酸钙簇晶
C.草酸钙方晶
D.草酸钙棱晶