LF11是一种()。
A、防锈铝合金,不可热处理强化
B、防锈铝合金,可热处理强化
C、硬铝合金,不可热处理强化
D、硬铝合金,可热处理强化
参考答案:A
He was surprised to find his room thoroughly cleaned and everything arranged
A.at its place
B.up to date
C.in good order
D.to the full
评标的核心是( ),其对标书进行实质性审查。
A.初步评审
B.综合评审
C.详细评审
D.响应性评审