问题
单项选择题
用人单位与劳动者约定以一定工作任务为期限的合同为（ ）劳动合同。
A．固定期限
B．无固定期限
C．以完成一定任务为期限
D．短期
答案
参考答案：C
解析：【解析】以完成一定工作任务为期限的劳动合同，是指用人单位与劳动者约定以某项工作的完成为合同期限的劳动合同。故选C。
搜题请搜索小程序“爱下问搜题”
用人单位与劳动者约定以一定工作任务为期限的合同为（ ）劳动合同。
A．固定期限
B．无固定期限
C．以完成一定任务为期限
D．短期
参考答案：C
解析：【解析】以完成一定工作任务为期限的劳动合同，是指用人单位与劳动者约定以某项工作的完成为合同期限的劳动合同。故选C。
完形填空 阅读短文 ，从每小题所给的A、B、C 、D四个选项中先出可以填入空白处的最佳选项（共15空；每空1分，满分15分） Tom is four years old now. His father works in a middle school and 1 P. E. there. His mother works in a shop and his grandma looks after him 2 . The boy is clever and always 3 that he knows more than his little friends do. One morning Tom ' s father 4 earlier. His school was going to hold a sports meeting that day. Of course, he was going to be 5 than any other teacher in his school. About two hours later, Tom's grandma 6 sick. Her head hurt but she couldn't go to see a 7 by herself. She called her son, but 8 answered. So she asked the little boy to go to tell his father about it As soon as Tom went out, he 9 his friend Henry. And he asked him to go there with him. The boys wanted to watch the sports meeting; and they 10 went there happily. Then they got to school, there were a lot of people on the 11 and the boy ' s 400 metre relay race(接力赛) 12 . They stopped to watch it. And Tom 13 what his grandma told him to do. They were interested in the race. Henry asked, "Why is the front boy running so fast?" Tom didn ' t know about it. He 14 for a minute and said, "What a fool( 傻瓜) ! Don't you see the other boys with 15 in their hands are running after him?"
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如图，在水平桌面上铺粗糙程度不同的物体，让小车自斜面顶端同一高度、从静止开始滑下．小车在不同表面运动的距离见下表．通过探究，我们可以反驳如下说法中的哪一条（ ）
| 表面情况 | 棉布 | 木板 | 玻璃 |
| 小车运动的距离/m | 0.27 | 0.42 | 0.79 |
A．小车所受阻力越小，小车速度减小得越慢
B．小车受到力就运动，小车不受力就不运动
C．若平面绝对光滑，小车的速度将保持不变，永远运动下去
D．运动物体不受力，将保持匀速直线运动
