如右图所示,一人坐在小车的水平台面上,用水平力拉绕过定滑轮的细绳,使人和车以相同的加速度向右运动,水平地面光滑( )

如右图所示,一人坐在小车的水平台面上,用水平力拉绕过定滑轮的细绳,使人和车以相同的加速度向右运动,水平地面光滑( )

| A.若人的质量大于车的质量,则车对人的摩擦力方向向右 |
| B.若人的质量小于车的质量,则车对人的摩擦力方向向右 |
| C.若人的质量等于车的质量,则车对人的摩擦力为零 |
| D.不管人、车的质量关系如何,车对人的摩擦力都为零 |
如右图所示,一人坐在小车的水平台面上,用水平力拉绕过定滑轮的细绳,使人和车以相同的加速度向右运动,水平地面光滑( )
| A.若人的质量大于车的质量,则车对人的摩擦力方向向右 |
| B.若人的质量小于车的质量,则车对人的摩擦力方向向右 |
| C.若人的质量等于车的质量,则车对人的摩擦力为零 |
| D.不管人、车的质量关系如何,车对人的摩擦力都为零 |
We have __________ Art lesson every Monday.
| A.an | B.the | C.a | D./ |
---There is a tall building on Taoze Road. Do you know?
---I know it. It ________ has 10 floors.
---I know it. It ________ has 10 floors.
| A.most | B.at least | C.least | D.will |
I like sleeping late_____ every Sunday morning.
| A.in | B.on | C.at | D./ |
---“__________ do you watch TV?”
---“Every day.”
---“Every day.”
| A.How long | B.How much | C. How often | D.When |
We love to sit on the floor and _____________ the beach and the sea.
| A.look out of | B.look out at | C.look out | D.look for |
Mary is the _________ child of her parents.
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| A.two | B.second | C.2th | D.second one |