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【单选题】
How many times was Nick drunk in his life ?A.
many times
B.
twice
C.
once
D.
never
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反馈参考答案：
举一反三
【简答题】道路立体交叉按交通功能可分为:____、____。
【多选题】有关“正常菌群”描述错误的是:
A.
是正常情况下定居于人体体表和开放性腔道中的不同种类和数量的微生物群
B.
是 正常情况下 定居于空气中的 不同种类和数量的微生物群
C.
是实验室中正常情况下对人无害的 不同种类和数量的 微生物菌群
D.
“ 正常菌群 ” 是动植物健康所必需的
E.
当正常菌群在组成和数量上出现明显改变时可能会导致菌群失调症
【简答题】Recently people have made great progress in using ______ power of nature to produce ______ electricity. A．a; the B．/ ; / C．the; / D．a; an
【简答题】For this part, you are allowed 30 minutes to write a short essay entitled Should Electricity in the Dormitory Be Cut Off after Midnight? You should write at least 120 words following the outline given...
【单选题】The author raises issues that would most concern which of the following groups?
A.
Electricians.
B.
Environmentalists.
C.
Aviators.
D.
Teachers.
【单选题】The heat that is produced by burning garbage can be used to______.
A.
make electricity
B.
make energy source
C.
boil water
D.
save coal
【单选题】The process of producing electricity may also give out CO 2 , _____ you heat your house with electricity instead of charcoal. [ ]
A.
even if
B.
as long as
C.
as if
D.
as soon as
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