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【单选题】
当前电子支付中存在的主要问题之一在于( )。
A.
货币兑换问题
B.
经济问题
C.
支付票据格式的统一问题
D.
跨国交易中的关税问题
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参考解析:
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举一反三
【单选题】下列化合物中,水溶性最大的是
A.
3- 羟基吡啶
B.
3- 氨基吡啶
C.
2,5- 二羟基吡啶
D.
吡啶
【单选题】There are only _________ new words in the passage, but I know _________ of them. [     ]
A.
some; all
B.
a few; none
C.
lots of; a few
【单选题】There are___new words that all of us can understand
A.
so a few
B.
such a few
C.
so few
D.
such few
【单选题】下列化合物中,水溶性最大的是
A.
2-氨基吡咯
B.
2-硝基吡咯
C.
噻吩
D.
呋喃
【单选题】The first thing ____ you should do is to learn all the new words by heart.
A.
what
B.
that
C.
which
D.
who
【单选题】In the author’s opinion, if you cannot memorize all the new words you are learning, it is because _____.
A.
you are forgetful
B.
you are not working hard enough
C.
you are not interested in memorizing English words
D.
you are trying to memorize too many new words at a time
【简答题】In the author’s opinion, if you cannot memorize all the new words you are learning, it is because _____.A. you are forgetful B. you are not working hard enough C. you are not interested in memorizing ...
【判断题】采用风力涡轮机发电的设想始于1890年德国。
A.
正确
B.
错误
【单选题】下列化合物中,水溶性最大的是
A.
C2H5OH
B.
C4H9OH
C.
C2H5I
D.
C2H5Cl
【单选题】下列化合物中,水溶性最大的是
A.
2-羟基吡咯
B.
吡咯
C.
2-甲基吡咯
D.
呋喃
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