单项选择题

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A.There’s much to do besides work and study.
B.It’s convenient for people to go anywhere.
C.The natural environment is beneficial to children.
D.The countryside is a perfect place for weekends.
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单项选择题
A.He was first of all a scientist.B.He was a naturalist but not a scientist.C.He was no more than a born naturalist.D.He was a scientist as well as a naturalist.
A.He was first of all a scientist.
B.He was a naturalist but not a scientist.
C.He was no more than a born naturalist.
D.He was a scientist as well as a naturalist.
单项选择题
A.They are self-evident.B.They are yet to be proved.C.They are to be further studied.D.They are supported by scientific evidence.
A.They are self-evident.
B.They are yet to be proved.
C.They are to be further studied.
D.They are supported by scientific evidence.
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