汽车的质量分为（）两部分。 A.平移的质量 B.旋转的质量 C.水平质量 D.竖直质

阅读理解。

     Do you know Marc Yu (余俊承). He is very famous. He is only nine years old. He is a Chinese

American. His mother is from Macao. He likes music very much and he has great musical talent (天赋).

He can play forty pieces of classical music now.

     After hearing Mary Had a little Lamb one time at the age of three, he began playing it on the piano.

Before that, he didn't learn the piano at all. He started to take the piano lessons at the age of three. His

first public performance (表演) was at the age of three, too.

     Now he can play great music for people on the stage. He wants to be a famous musician like Lang

Lang in the future. He likes Lang Lang very much. Lang Lang is his idol.

1. How old is Marc Yu? _____.

A. 9

B. 3

C. 7

D. 8

2. Where is his mother from? _____.

A. His mother is from America

B. His mother is from Macao

C. His mother is from Tai Wang

D. His mother is from Hong Kong

3. When did he begin to learn the piano? _____.

A. At the age of 9

B. At the age of 5

C. At the age of 3

D. At the age of 10

4. How many pieces of classical music can he play now? _____.

A. 14

B. 4

C. 40

D. 400

5. What does Lang Lang do? _____.

A. A pop singer

B. A rock singer

C. A musician

D. A writer

投资形成的固定资产和生产能力，决定着一定时期国民经济的( )。

A．供给能力

B．国内生产总值

C．国民生产总值

D．需求能力

以下不属于按生产要素分配的是：

A．按劳动力价值分配

B．按资本分配

C．按技术分配

D．按个体劳动者的劳动成果分配

（）与应付单是应付账款日常管理的原始单据。

A.销售发票

B.收款单

C.采购发票

D.应收单

柴油具有稳定性较强、（）较弱，易于保存和运输，危险性较汽油小等特点。

A.抗爆性

B.挥发性

C.燃烧性

D.黏度