CAD/CAM系统中,()是自动设计和图形处理的基础。A、任务处理 B、交互软件 C

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问题:

CAD/CAM系统中,()是自动设计和图形处理的基础。

A、任务处理

B、交互软件

C、几何建模

D、数据库

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题型:单项选择题

Qi Haoran, a Junior Grade One student at a High School Attached to Harbin Institute of Technology, was quite busy over the past winter holiday – and not just with homework. Qi, together with 10 other classmates made a volunteer group to call on people to join the Clean Your Plate Campaign(光盘行动).

These students went to many restaurants and told people the importance of saving food. “Excuse me, do you know that 950 million people around the world still haven’t got enough to eat? Please don’t waste food.” They would say this kind of thing hundreds of times every day.

The Clean Your Plate Campaign began on the Internet in January. It calls on people to reduce food waste. China in recent years has experienced serious problems with wasted food. CCTV reported in January that the food Chinese people waste every year is enough to feed 200 million people for a year.

Chinese people are well-known for being hospitable(好客的)and generous. Many even feel that they lose face if their guests have eaten all the food.

Luckily, the campaign has got a lot of support. In a restaurant in Xinjiang, the owner gives the guests who have eaten up all that they ordered a sticker. People can enjoy a free meal when they have 10 stickers. More than 750 restaurants in Beijing have begun to offer smaller dishes and encourage their guests to take leftovers home.

To reduce food waste is a big task, and it needs time. It’s important that everyone does their bit, just like Qi. Did you finish your meals today?

小题1: The Clean Your Plate Campaign started __________ in January.

A.in a big restaurant

B.in a CCTV programme

C.in a high school

D.on the Internet小题2: The restaurant owner in Xinjiang __________ to support the campaign.

A.gave the guests a sticker if they ate up the food

B.offered the guests 10 stickers if they ordered a lot

C.offered smaller dishes to the guests

D.encouraged customers to take leftovers home小题3:You can probably read this passage _________.

A.in a science book

B.in a newspaper

C.in a tourist guide

D.in an advertisement

题型:单项选择题

如图所示的四种现象中,由光的直线传播形成的是(  )

A.

水中塔

B.

水面“折”枝

C.

镜中花

D.

手影

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JIT的技术支撑包括:看板管理和()等。

A.均衡化生产

B.程序化作业

C.设备的合理布置

D.设备的快速装换

题型:单项选择题

牛肉脂肪含( )较多。

A.饱和脂肪酸

B.不饱和脂肪酸

C.必需氨基酸

D.非必需氨基酸

题型:单项选择题

部颁CDT规约一副帧结构由同步字、控制字和信息字组成,其中可以没有()。

A.控制字

B.信息字

C.同步字

D.控制字和信息字

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