针对MDEA溶液,当原料气中的H2S增加而CO2没增加时,要保证产品气合格,则循环量()。
A、不变
B、增加
C、减少
D、看情况定
参考答案:B
To our credit , China overcame all the difficulties caused by the disasters in 2008 and successfully hosted the 29th Olympic Games.
A.wonder
B.doubt
C.credit
D.point
鼻咽癌累及舌下神经可致()。
A.面部麻木
B.眼球外展受限
C.视力障碍
D.声嘶
E.伸舌偏斜