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【单选题】
在____情况下监控系统会发出声光报警,并终止排放物排入。 I.油量瞬间排放率大于30L/ n mile;II.排油总量达到先前货物的1/30000;III.任何传感器的输入超过系统的有效范围;IV.系统运行发生故障,例如断电、样品丢失、测量或记录系统重大失误。
A.
I+Ⅱ+Ⅲ
B.
I+Ⅱ+Ⅲ+Ⅳ
C.
Ⅱ+Ⅲ+Ⅳ
D.
I+Ⅱ+Ⅳ
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举一反三
【单选题】_______ my carelessness, the machine doesn’t work again. A. Due in B. Due to C. Due at D. Due of
A.
Due in
B.
Due to
C.
Due at
D.
Due of
【判断题】王清任《医林改错》在中医学史上第一次正确描述了膈肌,并明确肯定了脑主宰思维记忆的功能。()
A.
正确
B.
错误
【判断题】The leading cause of America’s entry into World War I is mainly due to the damage to America’s interests.
A.
正确
B.
错误
【单选题】Into the dark apartment _______, who was quite surprised when everyone shouted “Happy Birthday”.
A.
did David walk
B.
David walked
C.
David did walk
D.
walked David
【判断题】The leading cause of America's entry into World War I is mainly due to the damage to America's interests.
A.
正确
B.
错误
【单选题】Due to the entry and exit of firms in a monopolistically competitive market:
A.
economic profits and economic losses are dissipated in the long run.
B.
economic profits persist in the long run, but not economic losses.
C.
economic losses will exist in the long run, but not economic profits.
D.
both economic profits and economic losses exist in the long run.
【单选题】His health is improving day by day. It is quite ______ that the medicine has a good effect on his disease. [     ]
A.
strange
B.
apparent
C.
complex
D.
uncertain
【判断题】王清任《医林改错》在中医学史上第一次正确描述了膈肌,并明确肯定了脑主宰思维记忆的功能。
A.
正确
B.
错误
【单选题】Some blood types are quite common, others are regionally , and still others are rare everywhere.
A.
distributed
B.
contributed
C.
obtained
D.
Convinced
【单选题】–Frank failed the driving test again. --______ He practiced a lot and was quite confident.
A.
What if?
B.
How come?
C.
So what?
D.
Why not?
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