1、【题目】We should be pleased to send you some samples of our new typewriter on approval,______ our own expense.
选项：
A.at
B.on
C.for
D.in
答案：
A
解析：
暂无解析
1、【题目】Companies wishing to ______ more money for development can sometimes issue new shares.
选项：
A.rise
B.raise
C.increase
D.develop
答案：
B
解析：
暂无解析
1、【题目】There is always a great demand for your goods if they are of good quality and competitive____ prices.
选项：
A.at
B.in
C.of
D.under
答案：
B
解析：
暂无解析
1、【题目】Many international companies produce a large number of products, often divided into product________.
选项：
A.categories
B.mix
C.brands
D.lines
答案：
D
解析：
暂无解析
1、【题目】The letter we sent last week is an enquiry _______ color TV sets.
选项：
A.about
B.for
C.of
D.as
答案：
B
解析：
暂无解析
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