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【简答题】
设 ，其中 为实数， ， ， ，若 ，则 .
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举一反三
【简答题】我国神舟五号载人飞船于()在酒泉卫星发射中心发射。
【单选题】Student: ______ Librarian: Sure, it"s open from 9:00 a.m. to 6:00 p.m. Monday through Thursday, 9:00 a.m. to noon on Friday and closed on Saturday and Sunday.
A.
Excuse me. Could you please tell me the library hours for the holiday
B.
Please do me a favor. When is the library open
C.
Hello, can I check in these books now
D.
Tell me, when are these books due
【简答题】我国有几个卫星发射中心?
【简答题】我国神舟一号无人飞船于()在酒泉卫星发射中心发射。
【简答题】My name is Jenny. I′m a student. I get up at 6:00. I eat breakfast at 7 o′clock. Now, it′s 7:30. It′s time to go to school.It′s 9:45.It′s time for P.E class. My P.E teacher is Mr.White.
【简答题】()年，我国第一颗地球资源遥感卫星(中巴地球资源卫星)在太原卫星发射中心发射成功。
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