题目内容

39. If you market by e-mailing, you can learn within a day__________

A) who have opened your messages
B) how old your message readers are
C) what quality your advertised product has
D) how much your advertising messages cost

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A) The TV program ratings and reviews.
B) The product's color and size.
C)The electronic links.
D)The shopping carts.

A. IDE
B. IDLE
C. Pycharm
D. Anaconda

A. .py
B. .pj
C. .c
D. .po

A. 仓库折旧费
B. 存货的保险费用
C. 存货的破损和变质损失
D. 存货资金的应计利息