金刚烷胺的新增加适应证是()
A.抗组胺
B.局部麻醉
C.抗帕金森病
D.强化麻醉
E.抗心律失常
参考答案:C
We shouldn't ______ their mistakes. [ ]
A. to laugh
B. laugh at
C. laugh
D. to laugh at
cell recognition (细胞识别)