搜题请搜索小程序“爱下问搜题”
问题 选择题

2011年3月11日，日本发生里氏9级地震，并引发了一系列的灾害，下列灾害中属于化学变化的是（　　）

A．

引发巨大海啸

B．

海浪将车辆等卷入海中

C．

核电站氢气发生爆炸

D．

地震中房屋被摧毁

答案

A、地震引发巨大海啸，无新物质生成，故A为物理变化；

B、海浪将车辆等卷入海中，无新物质生成，故B为物理变化；

C、核电站氢气发生爆炸，氢气与氧气反应生成水，有新物质生成，故C为化学变化；

D、地震中房屋被摧毁，无新物质生成，故D为物理变化．

故选C．

阅读理解

Live Music -----Jazz
Enjoy real American jazz, one of the most famous trumpet shows.
Place: Rainbow Jazz Club
Date: April 8----April 22
Time: 7:30 a.m. -------5:00 p.m.
Price: $ 80
Telephone:88656662
Waltz
Do you like dance? Do you want to learn waltz? Come here!
Place: Blue Sky Theater
Date: May 16---May 28
Time: 9:00 a.m.---8:00 p.m.
Price: $60
Telephone: 88655468
An Exciting Trip
Have your wonderful trip! You will enjoy the pleasure of the ferry and see the fantastic city nights.
Place: Hong Kong
Date: May 1—May 6
Price: $170 a day
Telephone: 88564822
Something about Shenzhou VII
Do you want to learn about Shenzhou VII? A good chance for you! Something interesting about Shenzhou VII is on show.
Place: Hebei Museum
Time:8:30a.m.---5:30 p.m.(Weekends)
9:00a.m.--- 5:00 p.m.
(Monday—Friday)
Price: $150
Telephone: 88656886
根据短文内容，选择正确答案。
小题1:If you want to enjoy jazz, you should call _________.
A．88564822B．88656662C．88655468D．88656886
小题2:Hebei Museum opens _______ hours a week.
A．18B．40C．58D．68
小题3:If Jack wants to be an excellent dancer when he grows up, he should go to ___.
A．Rainbow Jazz ClubB．Blue Sky Theater
C．Hebei MuseumD．Hong Kong
小题4:What can visitors do in Hong Kong according to the material?
A．They can enjoy real American jazz and the pleasure of the ferry.
B．They can see something about Shenzhou VII and enjoy real American jazz.
C．They can enjoy the pleasure of the ferry and see the fantastic city nights.
D．They can enjoy waltz in Hong Kong.
小题5:Which of the following is TRUE according to the material?
A．You need to spend $60 learning waltz.
B．You can enjoy American jazz at Rainbow Jazz Club in the morning.
C．You can go to Heibei Museum to look at the show every day except weekends.
D．You can watch good movies in Hong Kong.
查看答案
单项选择题

用铁剂治疗缺铁性贫血时，下列提法哪项是错误的

A．首选二价铁
B．宜在两餐间服用
C．忌与牛乳同服
D．忌与维生素C同服
E．贫血纠正后继续服用一个月
查看答案