皮皮学，免费搜题
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搜题
【单选题】
When was sugar used widely?A.
3,000 years ago.
B.
In modem times.
C.
Quite recently.
D.
300 years ago.
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皮皮学刷刷变学霸
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【简答题】HSV—I潜伏于___ 和 ___神经节中,HSV一II潜伏于___ 中。
【单选题】---How much do I have to ____you? I think it's a bit expensive. --- I don’t think so . It’s only three hundred pounds.
A.
pay
B.
spend
C.
cost
D.
take