较低的文化程度，已经成为严重阻碍农民工收入增长、生活改善和向上发展的瓶颈。201

用鳖甲为原料的是（）

A．狗骨胶

B．鹿骨胶

C．龟甲胶

D．鳖甲胶

E．鹿角胶

部分被氧化的铁片10g 与200g 的稀硫酸恰好完全反应，产生0.3g 氢气，求该硫酸溶液的溶质质量分数？

阅读理解。

     When you are travelling, whether on business or for pleasure, you often need to stay in a hotel. The kind

of hotel you choose probably is decided above all according to how much money you want to spend. There

are small hotels with very few services, where the prices are low, or there are large hotels with all the very

latest comforts, where you could spend all the money you have in the bank for one very comfortable night.

     There are several different kinds of people who go to hotels. Some want to live, rather than just stay, in

a hotel; the hotels which are designed to meet their needs are called residential hotels. How- ever, most people

who stay in hotels are either business people or tourists on holiday.

     In most hotels, there are two kinds of rooms: single rooms, for the use of one person, and double rooms,

for the use of two people. In addition, in large hotels, there are also suites (套房),which include two or more

rooms connected together-perhaps a bedroom and a living room. They are for people who are very rich or

very important.

1. One's choice of a particular hotel is made mainly according to _____.

A. how much one is willing to pay for a night

B. whether one is travelling on business or for pleasure

C. whether the hotel is in the central part of a city

D. how good the services of the hotel are

2. If the president of a certain country comes, he will _____.

A. live in a new hotel with a suite

B. stay in a single room of a hotel

C. stay in a double room of a hotel

D. stay in a suite of a modern hotel

3. If a person stays in a modern hotel with latest comforts for a night, _____.

A. he will become poor

B. he has to pay a lot of money

C. he has to spend all the money he has in the bank

D. he has to pay some money

4. The title of the article is probably _____.

A. Rooms of a Hotel

B. Cost of a Hotel

C. Hotels

D. People Staying in Hotels

四行程工作循环是发动机活塞在上下两次中曲轴相应地旋转（），完成一个工作行环。

A．一圈

B．二圈

C．四圈

位于广西（）县的黄姚是一个极具文化韵味的古镇，其街道呈带状，用青石板镶砌而成。

A、桂林恭城

B、崇左大新

C、百色靖西

D、贺州昭平