操作人员巡回检查,在安全装置方面,主要检查压力容器的安全装置情况,包括()。
A、操作压力
B、有无泄漏
C、与安全有关的温度计
D、物料配比
参考答案:C
When she got to know that she had passed the interview, the girl went to bed with a great weight _____ off her mind.
A.taking
B.taken
C.to take
D.being taken
聚酰胺色谱柱对下列中哪类成分的吸附性强, * * 不可逆
A.黄酮类 B.酚类C.醌类 D.鞣质E.糖类