钟表分针的运动可看做是一种旋转现象，一只标准时钟的分针匀速旋_爱下问搜题

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问题填空题

钟表分针的运动可看做是一种旋转现象，一只标准时钟的分针匀速旋转，经过15分钟旋转了（）度。

答案

90

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阅读理解。

Steve Jobs was one of the fathers of the personal computing time and the founder of Apple. He was also one of the giants of the information age. Here are some of his greatest contributions.

Apple II Jobs and Steve Wozniak founded Apple Computes Inc. in 1976. A year later, the Apple II was invented. This production (产品) was the world's first mass-market personal computer.	Apple II Jobs and Steve Wozniak founded Apple Computes Inc. in 1976. A year later, the Apple II was invented. This production (产品) was the world's first mass-market personal computer.
Apple II Jobs and Steve Wozniak founded Apple Computes Inc. in 1976. A year later, the Apple II was invented. This production (产品) was the world's first mass-market personal computer.	Apple II Jobs and Steve Wozniak founded Apple Computes Inc. in 1976. A year later, the Apple II was invented. This production (产品) was the world's first mass-market personal computer.

1. When did the iMac first come out?

A. In 1976.
B. In 1998.
C. In 2010.
D. In 2011.

2. Which one was the oldest?

A. The Apple II.
B. The iMac.
C. The iPad.
D. The Iphone 4s.

3. From the passage, we can know that the iPad ______.

A. has a better camera.
B. is the first personal computer.
C. has a CD-ROM slot.
D. is great for watching movies.

解答题

某汽车制造厂上半年生产小汽车36400辆，比原计划多生产3900辆，超产百分之几？