请简述血清甘油三酯（TG）*的参考值以及临床意义

The manager, ______ it clear to us that he didn't agree with us, left the meeting room. [ ]

A. who has made

B. having made

C. made

D. making

低温环境是指（）。

A.环境温度在10℃以下

B.环境温度在5℃以下

C.环境温度在0℃以下

D.环境温度在-5℃以下

E.环境温度在-10℃以下

He was accused _____taking ______drugs when he was at school , so he was questioned by the police.

A．of; up ;

B．for; down

C．of ; on

D．from; into

顶棚按饰面材料与龙骨关系分类有（）。

A、直接式顶棚

B、活动装配式顶棚

C、抹灰类顶棚

D、固定式顶棚

E、贴面类顶棚

励磁调节器自动电压控制方式与恒无功控制方式的本质区别在于两者调节速度不在一个数量级上。