氢、氧分离洗涤器内的电解液液位,在正常运行时应该是()。
A、氢略高于氧
B、氧略高于氢
C、氢处于高位
D、氧处于高位。
参考答案:B
—Why didn't you attend the party_______in the hall the other day?
—I just wanted some quiet time by myself.
A.held
B.being held
C.to be held
D.holding
做事缺乏兴趣,反应迟缓,自责自罪,整日呆坐
A.昏迷B.痴呆C.木僵D.情感淡漠E.抑郁下列表现最可能的症状为