问题
单项选择题
关于惯性的说法正确的是（）
A.只有静止或匀速直线运动的物体才有惯性
B.做变速运动的物体其惯性也是变化的
C.速度大的物体惯性大
D.质量大的物体惯性大
答案
参考答案：D
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关于惯性的说法正确的是（）
A.只有静止或匀速直线运动的物体才有惯性
B.做变速运动的物体其惯性也是变化的
C.速度大的物体惯性大
D.质量大的物体惯性大
参考答案：D
| 下面是吉林-长春之间的快车时刻表，请根据表内信息选择答案。 | ||||||||||
| ||||||||||
| 1. Here are of trains going between the two cities every day. | ||||||||||
[ ] | ||||||||||
| A. five pairs B. ten pairs C. fifteen | ||||||||||
| 2. If you want to get the earliest train to Changchun, you should take train. | ||||||||||
[ ] | ||||||||||
| A. K958 B. K656 C. K676 | ||||||||||
| 3. The first train from Changchun arrives in Jilin at . | ||||||||||
[ ] | ||||||||||
| A. 07:34 B. 08:48 C. 05:29 | ||||||||||
| 4. You are in Changchun now. Which train do you have to catch if you want to stay in Changchun as long as possible? | ||||||||||
[ ] | ||||||||||
| A. K957 B. K655 C. K675 | ||||||||||
| 5. It's 10 to 2 p.m.. If you are going to send a bag to the Changchun Railway Station and get the return train in only a few minutes, when will you arrive in Jilin? | ||||||||||
[ ] | ||||||||||
| A. 16:25 B. 18:35 C. 18:45 |