炮采工作面的炮眼装药量，一般（）的最少。
A．顶眼
B．腰眼
C．底眼
参考答案：A
从世界各个国家来看，社会保障的资金来源主要是( )。
A．政府预算支出
B．社会保障收费
C．社会保障税
D．企业捐助
Not until Dec. 2003 _____ caught by the US soldiers, and it was a great victory for the USA.
A. was Saddam Hussein
B. Saddam Hussein was
C. had Saddam Hussein been
D. Saddam Hussein had been
