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参考答案:
举一反三
【判断题】电渗析的推动力是电位差,利用阴离子交换膜的选择透过性的分离过程。
A.
正确
B.
错误
【单选题】It’s bad for our eyes to read books _______ the sun.
A.
to
B.
under
C.
in
D.
over
【单选题】My parents _____eat junk food, because it’s bad for our health.
A.
often
B.
never
C.
sometimes
D.
Always
【单选题】Our teacher tells us ______ in bed. It's bad for our eyes. [     ]
A.
not read
B.
not to read
C.
read
D.
to read
【判断题】光泽感低的木材,给人温暖感明显些。
A.
正确
B.
错误
【单选题】Let's not ___ books in the sun. It's bad for our eyes. [     ]
A.
read
B.
reading
C.
look
D.
look at
【单选题】Our teacher told us _______ too much time surfing the internet. It's bad for our health. [     ]
A.
not to cost
B.
not to spend
C.
not to pay
D.
not to take
【简答题】棒球内场各垒间距离为_______米,投手板的前沿中心至本垒板尖角的距离为18.44米。
【单选题】----Smoking should ____________ in school. ----I agree. It’s bad for our health.
A.
be allowed
B.
not allow
C.
allow
D.
not be allowed
【单选题】It’s bad for our eyes _____in bed.
A.
read
B.
reading
C.
to read
D.
reads
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