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【判断题】
从压缩机出来的制冷剂应为高温高压气态。
A.
正确
B.
错误
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参考答案:
举一反三
【简答题】酶促反应速度受许多因素影响,这些因素主要有酶浓度、()、pH值、温度、抑制剂和激活剂等。
【单选题】Jim's sister gave him a gift that would enable him ______
A.
to go to the local veterinarian
B.
not to worry about his dog
C.
to take care of his dog
D.
to do check-ups on his dog
【简答题】酶促反应速度受许多因素影响,这些因素主要有______、______、______、______、______和______等。
【单选题】Although you have lots of difficulties, you must ______your work.
A.
carry out with
B.
carry away on
C.
carry on with
D.
carry over
【简答题】酶促反应速度受许多因素影响,这些因素主要有酶浓度、底物浓度、pH值、温度、()和激活剂等。
【单选题】_______ you begin the work , you must carry it out through to the end.
A.
When
B.
Though
C.
Sometimes
D.
Once
【简答题】His landlady gave him a week’s _____ to leave theflat. A. threat    B. notice    C.advice    D. caution
【简答题】酶促反应速度受许多因素影响,这些因素主要有 、 、 、 、 、 等。
【简答题】酶促反应速度受许多因素影响,这些因素主要有()、()、()、()以及()和()。
【单选题】The criminal gave us a long chase before we caught him.
A.
trial
B.
pursing
C.
pursuit
D.
running
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