干冰、烧碱和小苏打三种物质分别与图中人类活动有关.请将它们的化学式填写在横线上.

题型:填空题

问题:

干冰、烧碱和小苏打三种物质分别与图中人类活动有关.请将它们的化学式填写在横线上.

①______可用于制肥皂②______可用于制发酵粉③______用于人工降雨.

考点:化学式的写法和意义
题型:填空题

阅读理解。

     Jane lives in London and she loves fashionable clothes. She is in Beijing now to buy Chinese clothes.

A saleswoman is trying to help her for that. (S=Saleswoman  J=Jane)

S: This is a Qing Dynasty style dress. It is made of silk and it has the Chinese word for happiness on the 

    back. Have a try in the fitting room. I'm daydaytest Placeholder!

J:  Look. The dress is a bit tight. I feel difficult to walk.

S: Oh, yes, you do. But you can try a jacket and trousers.

J: You mean that red silk jacket with flowers. Are the flowers called peonies?

S: Yes, the flower means good luck. This is Tang Dynasty style with big sleeves. You can put your hands

    in the sleeves to keep warm. You'd better have this shirt with short sleeves, this long skirt and silk

    shoes with a picture of phoenix on to go with this jacket.

J: That's very interesting. I'll take them.

1. Jane is in Beijing to buy                 clothes because they are fashionable.  

A. Japanese    

B. British    

C. Chinese    

D. American

2. The Qing Dynasty style dress is made of                 .

A. cotton    

B. silk    

C. leather    

D. cloth

3. The Chinese word                 is on the back of the Qipao dress.

A. Feeling Nice    

B. Happiness  

C. Health    

D. Getting Rich

4. Jane does not take the dress because it is                  .

A. expensive      

B. cheap      

C. too big    

D. a bit tight

5. After some fitting, Jane gets                  happily.

A. a suit of clothes  

B. a long skirt    

C. a jacket    

D. a pair of shoes

题型:填空题

标志着北宋灭亡的事件称为  [ ]

A.澶渊之盟

B.安史之乱

C.靖康之变

D.陈桥兵变

题型:填空题

个人对国家的责任是人生责任的核心,下列词语表达了这种核心的是( )。

A.前仆后继
B.天下兴亡,匹夫有责
C.鞠躬尽瘁,死而后已
D.先天下之忧而忧,后天下之乐而乐

题型:填空题

在调查设计中整理资料的计划包括

A.确定调查项目和调查表

B.确定调查方式

C.问卷的核查

D.正确选择分析方法

E.绘制统计表和统计图

题型:填空题

按近代量子力学的观点,核外电子运动特征()。

A.是有波粒二象性

B.可用2表示电子在核外出现的概率

C.原子轨道的能量呈连续变化

D.电子运动的轨迹可用的图表示

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