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【多选题】
金属探测接通()，进行测试。A.
未接电源时
B.
接通电源后
C.
旅客进行检查前
D.
旅客检查后
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反馈参考答案：
举一反三
【单选题】The ecological environment would be if we continue to enlarge deforested areas.
A.
face off
B.
worse off
C.
made off
D.
cut off
E.
frozen off
【简答题】C语言源程序的后缀名为_______,C++语言源程序的后缀名为________。
【判断题】If we enlarge the concentration of HA,The consentration of ions will incease
A.
正确
B.
错误
【单选题】What will most possibly follow the text?
A.
An example of how an entrepreneur operates.
B.
Another theory about entrepreneurship.
C.
The bad effects of entrepreneurs.
D.
The good effects of entrepreneurs.
【单选题】Electricity is used ___________heating and lighting and it is also used _________provide power ___________ machines.
A.
for, to, for
B.
for, for, for
C.
to, to, to
D.
to, to, with
【简答题】Intelt building also reduces ______for electricity by shedding loads when electricity is
higher-priced.A. input B. price C. costs D. output
【单选题】We should follow the example of our parents, ______ more and taking less.
A.
hoping
B.
doing
C.
saying
D.
giving
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