单项选择题

From the conversation, we know （） is very important for good eyesight.

A. Vitamin A
B. Vitamin B
C. Vitamin C
D. Vitamin D

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问答题
Listen to the following passage. Altogether the passage will be read to you four times. During the first reading, which will be done at normal speed, listen and try to understand the meaning. For the second and third readings, the passage will be read sentence by sentence, or phrase by phrase, with intervals of 15 seconds. The last reading will be done at normal speed again and during this time you should check your work. You will then be given 2 minutes to check through your work once more.
单项选择题
Obama’s proposal is meant to（）

A. reduce taxes of the economic-stranded companies
B. reduce taxes of the companies with overseas divisions
C. levy taxes from the companies that earn profits in the low tax rates countries
D. reduce taxes of the companies that earn profits in the low tax rates countries
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