See you ____________ 2 o'clock. [ ]
A. on
B. at
C. in
答案：B
In old days, books for blind people used paper ____ against metal wire to form letters.
A．to press
B．pressing
C．pressed
D．which pressed
下列哪项不是引起高钾血症的原因（）
A.代谢性碱中毒
B.血管内溶血
C.长期应用保钾利尿药
D.肾功能衰竭
E.挤压综合征
