题目内容
(请给出正确答案)
[单选题]
Which of the following letter parts is optional()?
A.dateline
B.subject line
C.writer' s name
D.salutation
答案
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A.dateline
B.subject line
C.writer' s name
D.salutation
第1题
A.Cash
B.Land
C.Accounts receivable
D.Owner's equity
第5题
A、of which
B、for which
C、by which
D、to which
第7题
A.in which
B.at which
C.on which
D.in that
第9题
A.Describing
B.predicting
C.brainstoring
第10题
A.by which
B.of which
C.to which
D.for which
第11题
We can separate the mixture into the pure chemical compounds______it is composed.
A.in which
B.of that
C.of which
D.from which