人们在日常生活中使用的温度计，是根据液体 ____ 的规律来测量温度的。图中寒暑

阅读理解

       This is Mike's bedroom. You can see a desk and a bed in the room. On the desk, there is a

backpack and three books. One is a Chinese book, the other two are English books. There is a

clock on the desk, too. You can see a baseball under the desk. On the bed there is a box. Can

you guess what's in the box? Ah, it's a new computer game. It's the present(礼物) for Mike's

seventh birthday.

1. Whose room is this?

A. May's.      

B. Mike's.      

C. Simon's      

D. Mark's

2. How many Chinese books are there on the desk?      

A. One.      

B. Two.      

C. Three.      

D. Four.

3. What's that under the desk?

A. A clock.      

B. A bed.      

C. A baseball.    

D. A notebook.

4. What can't you see on the desk?   

A. A book.      

B. A backpack.      

C. A computer.    

D. A clock.

5. How old is Mike?       

A. 4.      

B. 5.      

C. 6.      

D. 7.

如图所示，在铁圈和银圈的焊接处，用一根棉线将其悬在盛水的烧杯中，使之平衡；小心地向烧杯中央 滴入CuSO₄溶液，片刻后可观察到的现象是

A．铁圈和银圈左右摇摆不定

B．保持平衡状态

C．铁圈向下倾斜

D．银圈向下倾斜

窦性心动过缓者用阿托品治疗无反应时，可选用（）。

A.肾上腺素

B.去甲肾上腺素

C.异丙肾上腺素

D.苯肾上腺素（新福林）

E.多巴胺

在焊接和切割地点周围（）以内，不应有木屑、棉纱头、有机灰尘、油类等易燃物质。

A.1m；

B.3m；

C.5m；

D.7m。