Which sentence is used in the letter of thanks.
A. Please accept my sincere apology for…
B. I am writing for information about…
C. I would like to take this opportunity to express my thanks for…
D. I am writing to introduce…
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Which sentence is used in the letter of suggestion.
A. It would be highly appreciated if you could…
B. I believe you will take my advice into account.
C. It is with great pleasure that I recommend to you…
D. In reply to your advertisement, I wish to apply for…
Whcih letter is a business letter.
A. letter of invitation
B. letter of consolation
C. letter of thanks
D. Letter or placing an order
Match Englishi words and phrases with their proper Chinese mmeanning.
已知int a=2,b=6;,则表达式a*b/5的值是（）。
A. 2
B. 3
C. 2.4
D. 3.6
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