单项选择题

I'm sorry for the ________ tone of your letter, but I feel sure that things are not so bad with you as you say.

A．pleasant
B．threatening
C．grateful
D．pessimistic
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单项选择题
His ________ has changed but he has kept the free qualities of a scientific researcher.
A．state
B．status
C．station
D．statue
单项选择题
In the past two years, China ________ second, after the United States, in absorbing foreign investment.
A．graded
B．ranked
C．ranged
D．scaled
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