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【单选题】
哈代·克罗斯法的环状管网水力计算步骤是( )1闭合差大于允许值,计算校正流量。2计算管段水头损失。3校正各管段流量。4计算各基环闭合差。5确定管段管径。6初步分配流量。7计算闭合差,直至闭合差小于允许值。A.
⑥⑦5②①3④
B.
⑥④⑦5②①3
C.
⑥3④⑦5②①
D.
⑥5②①3④⑦
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举一反三
【简答题】Mr. Black loved his daughter Helen very much. Every day he spent all of his free time 51 with her. One night, he had much work to do, 52 couldn’t play with his daughter. In order to keep her ...
【判断题】In the preconventional stage of moral development, individuals make a clear effort to define moral principles apart from the authority of the groups to which they belong or of society in general.
A.
正确
B.
错误
【简答题】气体多变过程中,工质放热膨胀的多变指数范围是 ,工质膨胀升温的范围是
【单选题】How does the writer feel about sounds in general?
A.
They make him feel at home.
B.
He thinks they should be ignored.
C.
He believes they are part of our lives.
D.
He prefers silence to loud noises.
【单选题】The general agent is unexpected to make decisions in keeping with the goals and ethics of the company.
A.
Right
B.
False
C.
Uncertain
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