管路特性曲线是反应水流经管路时（）和（）之间的关系曲线。
A.流量，压头消耗
B.流量，温度
C.压头消耗，温度
参考答案：A
“与其等农民自下而上起来解放自己，不如自上而下解放农民”，与此相联系的历史事件是
A．英国圈地运动
B．法国雅各宾派实行的土地政策
C．俄国1861年改革
D．日本明治维新
Directions :
Study the following picture carefully and write an essay of 160- 200 words. In your essay, you should
1) describe the picture briefly,
2) interpret the meaning of the picture, and
3) give your comment.
You should write neatly on ANSWER SHEET 2.
