物理安全一般分为哪几类()?
A. 自然破坏
B. 人为破坏
C. 环境破坏
D. 病毒感染
At public housing’s peak, about 1970, local governments owned()of all housing in the country.
A.30%
B.40%
C.50%
D.60%
The United States has been a leader in scientific research and The average attendance in the House of Lords is usually about().
A.150
B.250
C.350
D.450
()者,将其列为重点核查对象,必须开展现场核查,加强申请材料真实性以及证明效力等方面的核查力度。
A.信用良好和守信
B.失信和严重失信
C.失信
D.严重失信