图中是一个两面光滑的斜面，∠β大于∠α，同一个物体分别在AC和BC斜面受拉力从底端匀速运动到C点，所需拉力分别为FA、FB，拉力所做功分别为WA、WB，则： 
A．FA＝FB，WA＝WB
B．FA＜FB，WA＝WB
C．FA＜FB，WA＜WB
D．FA＞FB，WA＞WB
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图中是一个两面光滑的斜面，∠β大于∠α，同一个物体分别在AC和BC斜面受拉力从底端匀速运动到C点，所需拉力分别为FA、FB，拉力所做功分别为WA、WB，则：
A．FA＝FB，WA＝WB
B．FA＜FB，WA＝WB
C．FA＜FB，WA＜WB
D．FA＞FB，WA＞WB
（) 4. Don't forget to __ the light before you leave the classroom.
A. turn on B. turn off C. turn down
（)8. This room is _ small _ hold these people.
A. so, to B. too, that C. too, to D. so, that
（)7. He __\_some milk ___ the banana shake？
A. added; to B. added; in C. put; to D. added; /
（)6. How many women workers are there in your factory？ About two ________.
A. hundreds B. hundred C. hundreds of D. hundred of
（)5. Lucy, I'll give you ______.
A.something different B.different something C. anything different