题目内容

基本建设项目按照组成内容不同所划分为哪几个部分以及他们内的含义？

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We would not give you any lower price ______ you could place an order for more than 500 tons.

A. except
B. until
C. unless
D. besides

Please ______ us if you find our price competitive.

A. buy them with
B. place orders with
C. place orders from
D. place our orders

Goods will be shipped _____ 30 days after receipt of your payment.

A. to
B. on
C. for
D. within

The loss was due to improper packing, ____ the suppliers should be responsible.

A. for which
B. to which
C. in which
D. which