热工控制回路中所使用的电器开关一般属于（）。A、低压电器； B、高压电器； C、交流

多式联运的货物主要是集装箱货物。

建设监理的基本工作“两管”是指合同管理和人员管理。（）

_____ that we all went out， lying in the sun.

A．So fine was the weather

B．So was the fine weather

C．The weather was so fine was

D．So the weather was tine

He met many problems ______ he was going over his lessons.

A．before

B．as soon as

C．since

D．while

（）在于塑造、树立良好的企业形象，用良好的形象吸引客户。

A.产品利益

B.服务利益

C.企业的利益

D.差别利益