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【简答题】
（本题满分12分）已知复数 , ,且 ．（1）若 且 ，求 的值；（2）设 ＝ ，已知当 时， ，试求 的值．
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举一反三
【多选题】Which are the two commonest layout of the business letter?
A.
the Blocked letter Style
B.
First line suspension
C.
the Semi-blocked Letter Style
D.
Right alignment
【多选题】Two major purposes of an invitation letter are________.
A.
to invite the receiver of the letter to the event
B.
to inform the receiver of the conference activities
C.
to show your respect and appreciation for the receiver
D.
to ensure that the person receiving the letter is going to attend
【单选题】ABCDEFGH Which letter is two to the left of the letter immediately to the right of the letter that is three to the right of the letter immediately to the left of the letter D?
A.
B
B.
D
C.
E
D.
H
【单选题】I have to write __ letter this evening.
A.
much
B.
another
C.
two another
D.
two more
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