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【单选题】
平面汇交力系平衡的必要充分几何条件是( )A.
主矢和主矩同时为零
B.
力偶系中各力偶矩的代数为零
C.
力的多边形封闭
D.
各直角坐标系中各轴上的投影的代数和都等于零
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【单选题】– Do you think the Stars will beat the Bulls? -- Yes. They have better players, so I _____ them to win.
A.
hope
B.
prefer
C.
expect
D.
want
【单选题】– Do you think it’s going to rain over the weekend? – .
A.
I don’t believe
B.
I don’t believe it
C.
I believe not so
D.
I believe not
【单选题】. – Do you think Linda will be fired this week? – The question is not worth discussing. I think the manager has _____.
A.
made an impression on her
B.
made contact with her
C.
made up his mind about it
D.
made his fortune from it
【简答题】14 –Do you think the fine weather willkeep up? --_____. A B C DA. I believe it B. I don’t believe it C. I believe not so D. I don’t believe so
【单选题】– Do you think the ________of this skirt suits me?
A.
Of course! You always look beautiful in red.
B.
size
C.
design
D.
price
E.
color
【单选题】– Do you think the Suns will beat Bulls?--Yes. They have better players, so I _____ them to win.
A.
hope
B.
prefer
C.
expect
D.
want
【单选题】–Do you think the fine weather will keep up? --_____.
A.
I believe it
B.
I don’t believe it
C.
I believe not so
D.
I don’t believe so
【单选题】– Do you think the ________of this skirt suits me? – Of course! You always look beautiful in red.
A.
size
B.
design
C.
price
D.
color
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