There are _____ in the park on Sunday.
A. more children
B. a lot of people
C. much men and women
D. many peoples
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-This blue sweater is too big for me.-Will you please show me a _____ one?
A. small
B. smaller
C. the smallest
D. smallest
This bike is _____ than that one.
A. twenty yuan dear
B. twenty yuan dearer
C. dear twenty yuan
D. dearer twenty yuan
在Inventor中过渡约束一般适用于以下哪种装配?
A. 凸轮约束连接
B. 齿轮传动
C. 涡轮蜗杆传动
D. 齿轮齿条传动
以下那个装配约束可以直接驱动?
A. 固定
B. 相切
C. 运动
D. 过渡