同义句转换

1. I think he is not so tall as his father.

I think his father is _____ ____ him.

2. I like dolphins because they're cleverer than any other animal.

I like dolphins because they're    ___ ____ animal.

3. This road is 10 kilometers long. That road is 300 meters long.

This road is ____ ____ ____ that one.

4. I'll stay here instead of going there with you,

I won't go there with you. I'll stay here ____.

5. This passage is short and there are no new words in it, but it is difficult to understand.

____ this passage is short and there are no new words in it, ____ it is difficult to understand.

“海宝”是2010年世博会的吉祥物，其形状如图所示．为迎接世博会，某公园大门口的水平地面上安放一个大型“海宝”雕塑，其重力为3.6×10⁴N，与水平地面间的接触面积为1.2m²．g取10N/kg．求：

（1）该雕塑的质量是多少？

（2）雕塑对地面的压强是多少？

（3）在搬运过程中，起重机在20s内将该雕塑匀速抬高了2m，则起重机对雕塑所做功的功率是多少？