女性，18岁。低热半个月来诊。检查发现右侧胸腔积液。抽取胸液为血性，化验结果：比重1

He found them _____ at a table ____ chess.

A．sat; to play

B．sitting; to play

C．seated; playing

D．seat; playing

So hard was the woman’s life, but to her _____  , her only son was admitted to a top university last year.

A．surprise

B．relief

C．astonishment

D．disappointment

在液柱式压力计中，由毛细现象影响所产生的误差是属于可以修正的（）。

A.基本误差

B.偶然误差

C.系统误差

药物或营养素的（）会因相互作用而发生改变。

A.吸收

B.代谢

C.分布

D.排泄

E.转换