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【单选题】
斜齿圆柱齿轮的螺旋角越大,下面哪个分力越大?A.
切
B.
径向力
C.
轴向力
D.
法向力
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【简答题】阅读理解。 There is a basketball team ( 队) in our school. There are twenty-six girls in the team. They play basketball from one o'clock to four o'clock every Sunday afternoon. Miss Ma is their teacher. She...
【单选题】一绝热容器被隔板分成两半，一半是真空，另一半是理想气体，若把隔板抽出，气体将进行自由膨胀，达到平衡后（ ）。
A.
温度不变，熵增加
B.
温度升高，熵增加
C.
温度降低，熵增加
D.
温度不变，熵不变
【简答题】Read the passage below and choose the best answer. Growing up as an Asian in Britain is much more than a question of facing discrimination and trying to find decent job -- especially for a girl. She h...
【简答题】In schools all over the world, boys and girls are studying foreign languages. Everyone knows his own language, but when you are in other countries, you are trying to understand people in other countri...
【简答题】Girls are trying to get _______. 女孩们都想要瘦一些。
【简答题】We have ten minutes’ rest between classes. Look! Most of us are playing during the break(休息) time .Some students are on the playground. They are playing basketball. Oh! A boy is running with the ball....
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【单选题】Losing Weight Girls as young as 10 years old are dieting and in danger of developing unhealthy attitudes about weight, body image and food, a group of Toronto researchers reported Tuesday. Their study...
A.
were overweight
B.
were on a diet
C.
had unhealthy attitudes about weight
D.
had a healthy body weight
【简答题】Watch the video clip “Why I’m Done Trying to Be Man Enough” (Section II). Complete the summary of this part. Millions of young boys and girls all over the world have been taught that girls are 1) ____...
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