下列试剂瓶标签上的化学式，书写错误的是 [ ]
A．
B．
C．
D．
答案：C
As a result of the serious flood, twothirds of the buildings in the area ________. [ ]
A. need repairing
B. needs to repair
C. needs repairing
D. need to repair
下列腧穴，不属于手厥阴心包经的是（）
A.内关
B.大陵
C.中冲
D.尺泽
E.劳宫
