外化于行第二要义是（）。
A.一定不能走“捷径”
B.一定要完成工作任务
C.一定要走“捷径”
D.一定要提高效率
参考答案：D
— You may make more mistakes if your paper is left_______.
— Thanks a lot. And would you give me some advice on how to polish it?[ ]
A. being unchecked
B. to be unchecked
C. to check
D. unchecked
我国最早的药学专著是（）
A.《神农本草经》
B.《证类本草》
C.《新修本草》
D.《本草经集注》
E.《本草纲目》
