单选题:The gender gap needs to be closed because __________

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题目内容:
The gender gap needs to be closed because __________ A.it isn't fair that boys are allowed to use computers all the time
B.there isn't enough money for upgrading computers
C.most of the causes may boil down to a question of money
D.the ability to use computers is important in today's world

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Dehydration may occur if there is a shortage of water ______

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