80多年来，一代又一代的 * * 党人前仆后继，创造和培育了具有不同内涵的革命精神。某

Bill was doing a lot of physical exercise to build up his________.[      ]

A. ability  

B. force

C. strength  

D. mind

--Did you finish your homework on time yesterday.

--No, I didn't _______ on time. By the time I finished it, all my classmates

A．finish it; turned it in

B．finish it; had turned in it

C．make it; turned it in

D．make it; had turned it in

由于甲酸盐钻井液成本较高，建议该体系在（）使用。

A、表层段

B、目的层段

C、易塌地层段

D、易漏地层段

LIN数据总线系统中，从节点的故障诊断是通过（）来进行的。

A.发动机电控单元

B.主节点

C.从节点

高层民用建筑中有条件不设封闭楼梯间的建筑有( )。
Ⅰ．裙房；Ⅱ．十一层的单元式住宅；Ⅲ．30m的普通办公楼；Ⅳ．十层的通廊式住宅

A．Ⅰ
B．Ⅱ
C．Ⅱ、Ⅳ
D．Ⅰ、Ⅱ、Ⅲ、Ⅳ