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【单选题】
在画数据流程图时,以下规则不适合的是( )。
A.
每个处理都至少有一个流入数据流和输出的数据流
B.
一般需要在图上标注数据流的名称
C.
在图上可以表达数据处理的逻辑,比如判断逻辑
D.
在逐层分解数据流程图时,上下层之间必须保持平衡
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【单选题】普通圆柱蜗杆传动的正确啮合条件是( )。
A.
:下标t表示端面,a表示轴向,1表示蜗杆、2表示蜗轮)
B.
mt1=ma2, αt1=αa2,γ=β
C.
ma1=mt2, αa1=αt2,γ=β
D.
mt1=ma2, αt1=αa2,γ=-β
E.
ma1=ma2, αa1=αt2,γ=-β
【单选题】---Who would you rather ________ the English Speech Contest? ---- Li Ping, I think , is the best choice.
A.
have attend
B.
attend
C.
have attended
D.
attending
【单选题】. –Tom, go to the office to fetch the papers. Who would you rather with you, Wang Lin or Li Feng? --- .
A.
have go; Neither
B.
go; Neither
C.
have gone; None
D.
have to go; None
【多选题】对于壁面清洁的间壁式换热器,其传热的总热阻中可能包括以下哪些传热阻力?( )
A.
对流传热热阻
B.
管壁导热热阻
C.
污垢热阻
D.
接触热阻
【单选题】普通圆柱蜗杆传动的正确啮合条件是( )
A.
mt1=mx2,αt1=αx2,γ1=β2
B.
Mx1=mt2,αx1=at2,γ1=β2
C.
mt1=mx2,αt1=αx2,γ1=-β2
D.
Mx1=mx2,αx1=at2,γ1=β2
【多选题】谈判事项的顺序编排有以下几种方式( )。
A.
先易后难
B.
先难后易
C.
混合编排
D.
齐头并进
【单选题】There is a leadership opportunity at NC State that really interests you. You would like to apply for the opportunity, but are nervous about the public speaking duties that may be necessary. What shoul...
A.
Avoid all positions and opportunities that involve public speaking.
B.
Do not apply for the position. Public speakers are born, not made.
C.
Apply for the position. Public speakers are made, not born.
D.
Apply for the position but skip any public speaking duties that become necessary.
【单选题】普通圆柱蜗杆传动的正确啮合条件是 ( ) 。
A.
mt1=mx2 ,α t1= α x2 ,γ = β
B.
mx1=mt2 ,α x1= α t2 ,γ =- β
C.
mt1=mx2 ,α t1= α x2 ,γ = - β
D.
mx1=mt2 ,α x1= α t2 ,γ = β
【单选题】---__________ take out the trash after dinner? ---Yes, sure.
A.
How about
B.
Would you mind
C.
Would you like
D.
Could you please
【单选题】普通圆柱蜗杆传动的正确啮合条件是 ( )。
A.
mt1=ma2, αt1=αa2,γ=β
B.
ma1=mt2, αa1=αt2,γ=β
C.
mt1=ma2, αt1=αa2,γ=-β
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