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【简答题】
已知x:y:z=2:3:4,求 3x+2y-z x+y+z 的值.
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参考解析:
知识点:
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举一反三
【单选题】肝气亢奋时,患者的情志改变是:
A.
抑郁
B.
多愁善感
C.
急躁易怒
D.
喜笑不止
【单选题】在下列关于梁转角的说法中,错误的是( )
A.
转角是横截面绕中性轴转过的角位移
B.
转角是变形前后同一横截面间的夹角
C.
转角是横截面绕梁轴线转过的角度
D.
转角是挠曲线之变化
【单选题】—Let's have a look at the new picture. —_______. [     ]
A.
It's right
B.
That's all right
C.
All right
【单选题】听力原文: Right, let's move on to the targets for 1998 and our medium-term plans. For the AMAT, we expect to reach sales of 250,000—this is roughly the same figure as last year and it may be a little pess...
A.
200,000
B.
250,000
C.
600,000
【单选题】听力原文: Right, let's move on to the targets for 1998 and our medium-term plans. For the AMAT, we expect to reach sales of 250,000—this is roughly the same figure as last year and it may be a little pess...
A.
200,000
B.
250,000
C.
600,000
【单选题】肝气亢奋时,患者的情志改变是
A.
抑郁
B.
多愁善感
C.
急躁易怒
D.
喜笑不休
E.
易悲
【单选题】听力原文: Right, let's move on to the targets for 1998 and our medium-term plans. For the AMAT, we expect to reach sales of 250,000—this is roughly the same figure as last year and it may be a little pess...
A.
200,000
B.
250,000
C.
600,000
【单选题】肝气亢奋时,患者的情志改变是
A.
抑郁
B.
多愁善感
C.
急躁易怒
D.
喜笑不止
E.
易悲
【单选题】下列关于梁转角的说法中,错误的是( )。
A.
转角是横截面绕中性轴转过的角位移
B.
转角是变形前后同一横截面的夹角
C.
转角是横截面绕梁轴线转过的角度
D.
转角是挠曲线之切线与轴向坐标轴间的夹角
【单选题】— Sorry, wrong number. — ____. [     ]
A.
That's right
B.
You're right
C.
All right
D.
That's all right
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