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【单选题】
属于半极性溶剂的是A.
H2O
B.
甘油
C.
脂肪油
D.
丙二醇
E.
液状石蜡
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举一反三
【简答题】China is the world’s largest mobile payment service market, with both tech and financial giants promoting their own tools to make easier payment for daily shopping, dining and commuting. Most big citi...
【简答题】What is mobile payment? How many ways of mobile payment are mentioned in the passage? What are they? What’s the advantage of mobile payment?
【多选题】Mobile payment may include the following:
A.
Wechat pay
B.
Ali pay
C.
Union Pay
D.
Apple pay
【单选题】How does the author feel about the future of Bluetooth technology in mobile payment?
A.
Acceptable.
B.
Profitable.
C.
Ordinary.
D.
Promising.
【简答题】mobile payment
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