试题与答案

《回乡偶书》是一首脍炙人口的诗歌,这首诗的作者是(*A.贺知章 B.张若虚 C.陈子

题型:单项选择题

题目:

《回乡偶书》是一首脍炙人口的诗歌,这首诗的作者是(*

A.贺知章

B.张若虚

C.陈子昂

D.王维

答案:

参考答案:A

解析:本题测试文学常识.《回乡偶书》是贺知章的代表作,张若虚是《春江花月夜》的作者,陈子昂是《登幽州台歌》的作者,王维是《山居秋瞑》、《观猎》、《使至塞上》、《秋夜独坐》、《鹿柴》等诗的作者.

试题推荐
题型:阅读理解
阅读理解。
                                        Happy Time Park
Locationwest of the city
Getting thereNo.16 bus
Opening hours8:30-16:00 on weekdays, 8:00-18:00 on Saturday and Sunday
Attractions1. Plant Garden: thousands of kinds of plants to see
2. Sports Center: ball games, rock climbing, swimming and many
other fun games to enjoy
Facilitiesparking places, public toilets, public telephones, barbecue places,
medical care station and shopping centre at your service
1. The park is in the ________ of the city.
A. north
B. east
C. west
2. You can take a ________ bus to get to the park.
A. No.16
B. No.6
C. No.4
3. There is ________  in the park.
A. a zoo
B. a cinema
C. a plant garden
4. If you visit the park on Wednesday, you must leave the park ________.
A. before six o'clock in the afternoon
B. between 16:00 and 18:00
C. before four o'clock in the afternoon
5. Which of the following is TRUE according to the advertisement?
A. You can do sports in the park except swimming.
B. If you feel ill or get hurt in the park, you can find doctors for help there.
C. You can have a barbecue in the park if you buy something in the shopping centre.
查看答案
题型:问答题

I、恒温下,将amolN2与bmolH2的混合气体通入一个固体容积的密闭容器中,发生如下反应:N2(g)+3H2(g)⇌2NH3(g)

(1)若反应进行到某时刻t时,nt(N2)=13mol,nt(NH3)=6mol,计算a=______.

(2)反应达到平衡时,混合气体的体积为716.8L(标况下),其中NH3的含量(体积分数)为25%.计算平衡时NH3的物质的量______.

(3)原混合气体与平衡混合气体的总物质的量之比(写出最简整数比,下同),n(始):n(平)=______.

(4)原混合气体中,a:b=______.

(5)达到平衡时,N2和H2的转化率之比,a(N2):a(H2)=______.

(6)平衡混合气体中,n(N2):n(H2):n(NH3)=______.

II、若向体积不变的密闭容器中充入2molN2和6molH2,一定条件下发生反应:

N2(g)+3H2(g)⇌2NH3(g),平衡时混合气共7mol.令a、b、c分别代表N2、H2、NH3起始加入的物质的量,维持温度不变,使达到平衡时各成分的百分含量不变.则:

(1)若a=0,b=0,则c=______.

(2)若a=0.7,b=2.1,则:

①c=______.

②这时反应向______进行,因为:______.

③若要维持反应开始向该反应方向进行,c的范围是______.

(3)欲使起始反应维持向与②相反的方向进行,则b的范围是______.

查看答案
微信公众账号搜索答案