试题与答案

Humans are still needed to monitor the con

题型:单项选择题

题目:

Humans are still needed to monitor the condition of the boiler all the time the latter is operated, ()it is just to acknowledge an alarm buzzer or flashing light in a control room.

A.even if

B.so that

C.such that

D.in order that

答案:

参考答案:A

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