治安保卫重点单位应当按照国家的有关标准对重点部位设臵必要的（）设施。
A.技术防范
B.物理防范
C.安全防范
D.人防
参考答案：A
男性常见的性功能障碍有（）。
A.性欲过强
B.射精延迟
C.射精过早
D.勃起障碍
—Why did Miss Li leave the job?
—She _____ for higher wages, but was turned down in the end.[ ]
A. broke off
B. gave away
C. held out
D. picked up
