标准体积管检定周期是2年。

阅读理解。

      A man made a nice talk machine(机器). It could weigh people’s weight . The man wanted to try the

machine before he could make a lot of them. He put the machine into the waiting of a station. There were

a lot of people in and out.

The first one who used the machine was an Indian woman. She stood on the machine. The machine thought for a few seconds(秒) to decide which language to speak.

     "Good morning, madam,: it said in Indian, " Your weight is 72 kilos. That’s three kilos more. If you eat more fruit and vegetables, you’ll be soon all right . Please have a nice day."

The second one to use the machine was a Chinese girl. She stood on the machine and waited to hear her

weight.

     "Good morning, Miss,” The machine said in Chinese .Your weight is 45 kilos .It’s all right for your age and height. Go on to eat what you eat every day. Please have a nice day."

The third one to use the machine was a very fat American woman .She thought for a long time to stand on

the machine. The machine spoke highly in English, “ Good morning, Will one of you get off?”

1.What made the machine so special?

A. It could talk just like a man.

B. It could weigh people's weight.

C. It could know everyone.

D. A and B

2.What did the machine tell the Indian woman?

A. She was a little lighter

B. She was a little heavier

C. It couldn't speak Indian

D. To eat what she wanted to eat

3.How was the American woman?

A. She was healthy

B. She liked thinking

C. She was too heavy

D. The machine liked her

在货币问题上促进国际合作，是( )的主要业务活动之一。

A．国际货币基金组织

B．世界银行

C．国际金融公司

D．亚洲开发银行

电路如图所示，A、B端输入信号均为方波，D_A、D_b是理想二极管，当K点电位等于3V时，三极管饱和导通。这电路是一个什么电路（）？

A.与门电路

B.非门电路

C.与非门电路

D.或非门电路

我国政府的宗旨是

A．为人民服务

B．对人民负责

C．管理与服务

D．依法行政

当气流干燥设备的（）过程处于较稳定状态时，设备喂料点前工艺气流的物理状态也处于较稳定的状态，即绝干空气与过热蒸气的质量分数相对稳定。