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【简答题】
如图6-44所示,杆1为直径的圆截面,应力 [ σ ] 1 =140 MPa ;杆 2为边长 a=100 mm 的正方形截面,应力 [ σ ] 1 =4.5 MPa 。已知结点 B 处挂一重物 Q =36kN, 试校核两杆的强度。
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【单选题】The writer may probably believe that ______.
A.
few people have realized how serious the problem of pollution is
B.
the problem of pollution has not yet become a main concern
C.
the problem is not so serious that it does not require an immediate solution
D.
people are so eager for the benefits of modern society that they pay little attention to the problem
【多选题】非正式沟通的特点是( )
A.
它与组织内部的规章制度有关
B.
非正式沟通主要以社会关系和感情为基础
C.
非正式沟通比较难以控制,传递的信息也不一定准确
D.
非正式沟通容易导致小团体和小帮派的形成
【单选题】以一定的社会关系为基础,与组织内部明确的规章制度无关的沟通方式,沟通对象、时间、内容都是未经计划的,这种沟通方式是( )。
A.
正式沟通
B.
上行沟通
C.
下行沟通
D.
非正式沟通
【单选题】Few people realized then __________ until two years later.
A.
how this mistake was serious
B.
how serious was his mistake
C.
what serious mistake it was
D.
how serious his mistake was
【单选题】The writer may probably believe that ______.
A.
few people have realized how serious the problem of pollution is
B.
the problem of pollution has not yet become a major concern
C.
the problem is not so serious that it does not require an immediate solution
D.
people are so eager for the benefits of modern society that they pay little attention to the problem of pollution
【单选题】Few women realized they suffered inequality in jobs and education in the 1960s.
A.
Y
B.
N
C.
NG
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