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【单选题】
试剂瓶上的 LR 、 BR 、 PT 分别表示A.
实验试剂、生物试剂、基准试剂。
B.
生物试剂、基准试剂、试验试剂。
C.
试验试剂、基准试剂、生物试剂。
D.
以上都不是。
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举一反三
【简答题】根据作用的不同,海报一般可以分为_、_、_和_。
【单选题】According to the article, why might online matchmaking have more natural appeal to unmarried people in countries like India and China than it does to singles in the United States?
A.
the online matchmaking companies in those countries have better scientific research backing up their matches than do the U. S. companies
B.
those cultures have a long history of matchmaking and arrange marriages, so single people are more accustomed to having other people inter in their love lives
C.
the institution of marriage is less important in the U. S. than it is in other countries
D.
online matchmakers have invested much more money into advertising campaigns in those countries than they have in the U. S.
【单选题】Having good __________________ (customer service / inter-cultural) skills can help you communicate in a sensitive and flexible manner with people from other cultures.
A.
customer service
B.
inter-cultural
【简答题】制动时汽车方向稳定性是指汽车制动过程中(__)的能力;
【简答题】若 在点 发散,则当 时,级数 的敛散情况是 .
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