2．下列说法正确的是(　　 　)

A．若物体运动速率始终不变，则物体所受合力一定为零

B．若物体的加速度均匀增加，则物体做匀加速直线运动

C．若物体所受合力与其速度方向相反，则物体做匀减速直线运动

D．若物体在任意的相等时间间隔内位移相等，则物体做匀速直线运动

1．关于两个大小不变的共点力与其合力的关系，下列说法正确的是(　　 　)

A.合力大小随两力夹角增大而增大

B.合力的大小一定大于分力中最大者

C.两个分力夹角小于180°时，合力大小随夹角减小而增大

D.合力的大小不能小于分力中最小者

10.The man I spoke to is a professor.

9. The subject I prefer is science.

8. I enjoyed reading the book you gave me last week.

7. The man who waved us was my uncle.

6. The car which just passed us was going 90 miles an hour.

5. This is the hall where we listened to the report the other day.

4. The woman whom you were talking about is here now.

3. Beijing Hotel where the foreign visitors live is near Tian An Men Square.