以下哪个实验否定了以太假说？（）A、迈克尔逊莫雷实验 B、卢瑟福散射实验 C、黑体辐射D

任务型阅读。

阅读短文，完成1-5题。

     A little cat is on her way to school. She is singing as she is walking. (1)snake (蛇), for, something, looking,

is, eat, to, a. It sees the cat and wants to eat her very much, and it comes at (扑向) the cat.

     The cat also sees the snake and she is afraid. So she turns and begins to run away as fast as she can. Of

course the snake won't let her (2) _____(go). So it runs after the cat.

     The cat runs and runs, and soon she comes to a tree. Suddenly (突然) the clever cat has a good idea. She

keeps running around the tree, and so does the snake.

     Soon, the snake can't move (移动). The cat isn't afraid at all now. How happy the cat is! And what a clever cat! She runs to school again, singing!

1. 将(1)处连词成句:

__________________________________________________________________________.

2. 请用括号内词的正确形式将(2)处填好.

( )3. How does the cat feel when she sees the snake?

A. She feels happy.

B. She feels well.

C. She feels afraid.

D. She feels hungry.

4. How does the cat go to school?

______________________________________________________________________________.

5. What do you think of the cat?

______________________________________________________________________________.

公路“三乱”是指（）。

A、乱打人

B、乱收费

C、乱设卡

D、乱罚款

E、乱骂人

工业革命浪潮使人类获得巨大进步的同时，也产生诸多新的社会矛盾。你认为，工业革命时期有哪些社会矛盾？（列举两点）

___________________________________________________________________________________________

一定温度下，有可逆反应：2A（g）＋2B（g）C（g）＋3D（g）ΔH＜0。现将2molA和2molB充入体积为V的甲容器，将2molC和6molD充入乙容器并使乙容器在反应开始前的体积为2V（如图所示），保持反应过程中两容器的温度与起始时相同。

下列说法正确的是        （   ）

A．甲、乙两容器中的反应达到化学平衡时，C的体积分数相等

B．甲、乙两容器中的反应达到化学平衡时，两容器内压强不相等

C．向甲容器中再充入2molA和2molB，平衡后甲中物质C的浓度不变

D．向乙容器中再充入2molC和6molD，平衡后乙中物质C的浓度为原来的2倍

Parex模拟移动床工艺中，（）内的液压油直接推动活塞驱动棘轮使得旋转阀周期步进。

A.液压油箱

B.液压缸

C.蓄压器

D.齿轮泵