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【简答题】
8下列烯烃哪个有顺、反?写出顺、反体的构型,并命名。
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皮皮学刷刷变学霸
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【单选题】When you use e-mail, you may ________ .
A.
type your letter on the screen and then send it down the telephone line to another person
B.
have to pay more because e-mail is much faster than a postal service
C.
have to pay more if your message is going to a more distant land
D.
have to wait longer if your message is going to a more distant land
【简答题】More and more people are 41 ( enjoy ) the life with computers. Using computers you can send E-mail 42 ( quick ) and easily. You are able to send a letter with pictures and sounds to someone 43 ( 任何地方 ...
【简答题】完形填空。 Most of us can remember the days when we didn't use e-mail as an everyday vehicle for communication. Slowly but surely, it crept (慢慢移动) into 1 . E-mail is a 2 tool for college students at any le...
【简答题】植物生活全过程中,有两个关键需水时期是 和 。
【简答题】档案统计调查的基本形式有: 、 。
【简答题】When you use local e-mail, a(n) _____ stores your incoming messages.
【简答题】所有的鸟类都会飞行．______．
【单选题】在Excel2003中，需要首先在单元格C2中输入一个公式，接着拖拽此单元格填充C3：C8，使得每个单元格的值均等于B2单元格的值，则在C2中输入的公式为（）。
A.
=C2
B.
=$B2
C.
=B2
D.
=B$2
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