从圆(x-1)2+(y-1)2=1外一点P(2,3)向这个圆引切线,则切线长为_

题型:填空题

问题:

从圆(x-1)2+(y-1)2=1外一点P(2,3)向这个圆引切线,则切线长为___________

考点:点到直线的距离
题型:填空题

  Come to this great store and have a look. Here are some interesting things.

Card game

This is an interesting card game. It can bring you lots of fun.

Price: $9

Big Ben clock

Do you know the Big Ben in London? Here you can buy a Big Ben clock and put it on your desk.

Price: $15

Bus money box

Is it a toy bus? Yes, and you can put your money in it.

Price: $6

Bus pencil sharpener

This red bus is really a pencil sharpener. You can take it to school in your backpack.

Price: $3

小题1:How much is the Big Ben clock?

A.$9.

B.$15.

C.$6.

D.$3.小题2: Where can you put your money?

A.In a card box.

B.In the Big Ben clock.

C.In the bus money box.

D.In the bus pencil sharpener.小题3:What’s the red bus in the passage?

A.A toy.

B.A clock.

C.A bus.

D.A pencil sharpener.

题型:填空题

马克思主义哲学认为:“世界的真正统一性在于它的物质性。”据此回答1~2题。

1.下列属于物质的是[ ]

①影子 ②抗震救灾精神 ③青藏铁路上飞驰的列车  ④辩证唯物主义和历史唯物主义

A.①②

B.①③

C.②③

D.②④

2.下列能够说明材料中观点的是[ ]

①自然界是物质的 ②人类社会具有客观物质性 ③意识是社会的产物 ④意识的内容和形式都是客观的

A.①②③

B.①②④

C.①③④

D.②③④

题型:填空题

杭州工伤保险缴费主体是谁?

题型:填空题

国际贸易

题型:填空题

在ADSL线路安装时,入户线应使用()。

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