单项选择题

David is good ______ English, but he doesn't do well ______ PＥ.

A. at; on
B. at; in
C. at; with
D. in; at
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单项选择题
After the United States government reported ______ consumer demands for gasoline, market oil prices closed at $72 a barrel.
A. weaken
B. weakest
C. weakness
D. weakening
单项选择题
Fields Bank offered credit lines of up to $10,000 at ______ interest rates to attract more small business owners.
A. easy
B. reduced
C. pleasant
D. financial
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