W: Why do you always wait till the last minute？
Q: What does the woman mean？
(13)
A. She thinks it's too late anyway.
B. She thinks he should wait a minute.
C. She thinks he should do things early.
D. She thinks there might still be a chance even if it is last minute.
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价值工程的定义中，功能一般是指产品的()。
A. 基本功能
B. 使用功能
C. 主要功能
D. 必要功能
A．512×16bB．256×8bC．256×16bD．1024×8b
A. 512×16b
B. 256×8b
C. 256×16b
D. 1024×8b
One use of networks is to let several computers share______such as file systems, printers,
A. CPU
B. memory
C. resources
D. data
假定投资者购买A、B、C三种股票的比例为1：3：6，则该投资组合的系数和必要收益率为（）。
A. 1.52与18.62%
B. 1.46与20.22%
C. 1.52与20.22%
D. 1.46与18.62%
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