当采用可供选择的项目报价是,对于难以实现的规格,通常应该()。
A.将该规格价格压低
B.将该规格价格较大幅度提高
C.将该规格价格适当提高
D.不对该规格报价
参考答案:B
— My deskmate has made his goal to go to Beijing University.
— No wonder he has been working so hard.[ ]
A. that
B. him
C. it
D. this
以锌为主要合金元素的铜合金有()。
A.普通黄铜
B.特殊黄铜
C.铝青铜
D.锡青铜
E.铍青铜