中央银行从外汇市场向某商业银行购买美元后，下面说法正确的有（）。
A. 商业银行的银行准备金增加
B. 中央银行的其他存款性公司存款增加
C. 中央银行的资产负债表规模增加
D. 中央银行资产负债表规模不变
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You are writing to Emily Watson who you do NOT know well.Which is the best greeting?
A. Dear Mrs Watson
B. Hey Emma
C. Hi Emily
Dear Ms. Watson
You are writing an email to inform a colleague about a meeting.Which is the best subject?
A. Monthly Sales Meeting Tomorrow at 09:00 AM
B. meeting
C. Sales meeting
D. no subject
Which small talk sentence is correct?
A. How are you turning?
B. How are you doing!
C. I wish you are well.
D. How did your weekend went?
Which topic sentence is correct?
A. I am writing in regard to your complaint.
B. I am writing regarding to your complaint.
C. I am writing concern your complaint.
D. I write regarding your complaint
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