手提式液体灭火机指容量应不少于（）升，不大于（）升。
A.8，12.5
B.9，13.5
C.10，14.5
D.10.14.6
参考答案：A
已知自由落体运动的速率v=gt，则落体运动从t=0到t=t0所走的路程为______．
Directions:
Write an essay of 160--200 words based on the following drawing. In your essay, you should
1) describe the picture briefly,
2) explain its intended meaning, and then
3) support your view with an example/examples.
You should write neatly on ANSWER SHEET 2.
