问题
选择题
there is 70% of water on the planet, only about 1% of that water is drinkable.[ ]
A. Though
B. Only if
C. As though
D. However
答案
答案：A
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there is 70% of water on the planet, only about 1% of that water is drinkable.[ ]
A. Though
B. Only if
C. As though
D. However
答案：A