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【单选题】
系统的阻尼系数ξ=( )时,为最佳阻尼系数。这时系统的平稳性与快速性都较理想。
A.
0 .5
B.
0 .707
C.
1
D.
0
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【简答题】质量屋建设分产品规划阶段、零部件设计阶段、____阶段、生产计划阶段等四个阶段?
【简答题】I've lost interest in my work.英译汉
【多选题】《建设建设质量管理条例》规定在正常使用条件下,建设工程的最低保修期限为:
A.
基础设施工程、房屋建筑的地基基础工程和主体结构工程,为设计文件规定的该工程的合理使用年限
B.
屋面防水工程、有防水要求的卫生间、房间和外墙面的防渗漏,为5年
C.
供热与供冷系统,为2个采暖期、供冷期
D.
电气管线、给排水管道、设备安装和装修工程,为2年
E.
外墙围护结构,50年
【简答题】质量屋建设分____、____、____、____等四个阶段?
【简答题】英译汉:I've lost interest in my work.
【单选题】I’ve _____ my things at home.
A.
forget
B.
forgotten
C.
left
D.
lost
【单选题】根据材料,回答问题。People differ in their ability to learn. They differ in the greatness of ability they have, as well as in the kind of ability they have. Some students can 11 get passing marks in high school...
A.
always
B.
hard
C.
hardly
D.
almost
【单选题】--- What makes you so worried? ---- _______.
A.
Because of my weight
B.
I’ve lost some weight
C.
That I’m putting on weight
D.
Because I’ve put on weight
【单选题】I’ve lost _______ with George in the last few months.
A.
letter
B.
message
C.
contact
D.
news
【单选题】Speaker A: Thanks to John, we've lost our most important client. Speaker B: I've told you he's not proper for the position. Speaker A: ______
A.
I don't really agree with you
B.
I should have listened to you
C.
It doesn't matter. I trust him
D.
Thank you for being so helpful
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