山西省2025-2026学年上学期高二年级12月冲刺考(26-X-246B)数学答案

山西省2025-2026学年上学期高二年级12月冲刺考(26-X-246B)数学答案于2025-12-22发布，目前已经汇总了山西省2025-2026学年上学期高二年级12月冲刺考(26-X-246B)数学答案的各科答案和试卷，更多试卷答案请关注本网站。

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山西省2025-2026学年上学期高二年级12月冲刺考(26-X-246B)数学试题

山西省2025-2026学年上学期高二年级12月冲刺考(26-X-246B)数学试题

63．What is the theme (主题) of the text
A．Different shop classes in an American school.
B．How to take shop classes.
C．The history of shop classes.
Hello, everyone! My name is Sarah. I’m thirteen years old. I’m in Class Three, Grade Seven. This is our school.
There are 700 students in our school. There are twenty classrooms in our school. In our school we have a large library. It’s beside our classrooms. There are numerous books in it. We can read them and gain a lot of knowledge from them. The computer rooms are next to the library. Beside the library and the computer rooms there is a canteen. After school, we have our meals there. After school, we can play badminton, volleyball and tennis on the playground. Some of us love jogging. We can also jog there.
64．How many students are there in Sarah’s school

5、山西省2025-2026学年上学期高二年级12月冲刺考(26-X-246B)数学答案

6、山西省2025-2026学年上学期高二年级12月冲刺考(26-X-246B)数学答案

3、山西省2025-2026学年上学期高二年级12月冲刺考(26-X-246B)数学答案

6、山西省2025-2026学年上学期高二年级12月冲刺考(26-X-246B)数学试题

5、山西省2025-2026学年上学期高二年级12月冲刺考(26-X-246B)数学答案

D.物体的速度发生变化时，其动量一定变化
答案　D
解析　两物体的动量大小相等，由Ek=，可知Ek甲∶Ek乙=m乙∶m甲=4∶1，故A错误；做匀速圆周运动的物体，速度大小不变，但是方向一直在变，而动量是矢量，所以动量一定变化，B错误；由动量公式p=mv可知，做匀速直线运动的物体速度不变，则动量不变，C错误；由动量公式p=mv可知，物体的速度发生变化时，动量一定变化，D正确。
2.某过程中物体的动量变化量的大小为5 kg·m/s，则(　　)
A.物体的动量在减小
B.物体的动量在增大
C.物体的速度大小一定变化

山西省2025-2026学年上学期高二年级12月冲刺考(26-X-246B)数学答案