问题
选择题
— Let's go for a walk,shall we?
— It's too late now; _____,it's beginning to rain. [ ]
A. in addition
B. in a word
C. as a result
D. in general
答案
答案:A
— Let's go for a walk,shall we?
— It's too late now; _____,it's beginning to rain. [ ]
A. in addition
B. in a word
C. as a result
D. in general
答案:A
小明和小静同学在研究变速运动中物体速度变化快慢(单位是m/s2)跟物体所受外力以及物体质量的关系时,做了大量实验,其中一次列表如下:表1 用质量M=0.1kg的小车做实验的结果:
物体受到的力 | 0.01N | 0.02N | 0.04N | 0.08N |
物体速度的变化快慢 | 0.10m/s2 | 0.20m/s2 | 0.40m/s2 | 0.80m/s2 |
小车的质量 | 0.80kg | 0.40kg | 0.20kg | 0.10kg |
物体速度的变化快慢 | 0.10m/s2 | 0.20m/s2 | 0.40m/s2 | 0.80m/s2 |
由表2可得出的实验结论:______.