138.Some plants can take in carbon dioxide(二氧化碳) we breathe out and give ______ oxygen to us.A.in case B.in turn C.in return D.in additionin turn 反过来为何不能选B
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138.Some plants can take in carbon dioxide(二氧化碳) we breathe out and give ______ oxygen to us.A.in case B.in turn C.in return D.in additionin turn 反过来为何不能选B
138.Some plants can take in carbon dioxide(二氧化碳) we breathe out and give ______ oxygen to us.
A.in case B.in turn C.in return D.in addition
in turn 反过来
为何不能选B
138.Some plants can take in carbon dioxide(二氧化碳) we breathe out and give ______ oxygen to us.A.in case B.in turn C.in return D.in additionin turn 反过来为何不能选B
选C.
句意:一些作物吸收我们呼出的二氧化碳而给我们呼出氧气作为回报.
A.in case 万一;假使
B.in turn 轮流,依次=by turns,in file;转而,反过来(强调“按顺序轮流过来之后又转向”)
C.in return 作为回报;作为…的报酬;作为交换
D.in addition另外,此外
另外,此外(on top of,on the side)
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138.Some plants can take in carbon dioxide(二氧化碳) we breathe out and give ______ oxygen to us.A.in case B.in turn C.in return D.in additionin turn 反过来为何不能选B
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