金海岸船务公司同时每间隔5小时在大连与上海之间发一班船,每班船行经35小时到达对方港.某人乘坐此船从大连到上海,遇到该公司的船迎面开来的次数是（）（在港口遇到的也算）A、7次 B、

金海岸船务公司同时每间隔5小时在大连与上海之间发一班船,每班船行经35小时到达对方港.某人乘坐此船从大连到上海,遇到该公司的船迎面开来的次数是（）（在港口遇到的也算）A、7次 B、
金海岸船务公司同时每间隔5小时在大连与上海之间发一班船,每班船行经35小时到达对方港.某人乘坐此船从大连到上海,遇到该公司的船迎面开来的次数是（）（在港口遇到的也算）A、7次 B、8次 C、14次 D、15次

金海岸船务公司同时每间隔5小时在大连与上海之间发一班船,每班船行经35小时到达对方港.某人乘坐此船从大连到上海,遇到该公司的船迎面开来的次数是（）（在港口遇到的也算）A、7次 B、
刚出发时,35分钟前从上海发出的船到达大连,从这时开始,到此人到达上海,所有的船都算上
35分钟前到此人刚出发时,上海到大连共发了35/5+1=8艘船
下一艘是此人出发5分钟,直到此人到达上海,共发了35/5=7艘船
8+7=15
选D

C
35÷(5/2)=14
希望可以帮到你。

The Earth
The people on earth belong to many different countries. We speak many different languages and have different ideas. But we are all people born on the earth. All of us live and die on thi...

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The Earth
The people on earth belong to many different countries. We speak many different languages and have different ideas. But we are all people born on the earth. All of us live and die on this planet. We have never known any other home.
Men believed for thousands of years that the earth was the center of everything. They believed the sun and the stars moved around us.
The old ideas of men should not surprise us. Most of us only believe what we see. Many years passed, and then people knew that ours is only a very small part of a great universe, and the earth is moving around the sun.
What do we know about the place of our earth in space? We know that the earth is one of nine planets moving around the sun. We call the family of the sun and its planets the solar system.
belong to 属于
planet n. 行星
star n. 恒星
universe n. 宇宙
solar system 太阳系
True or False:
( ) 1. The earth is our only home. We all live and die on it.
( ) 2. Long long ago, people thought that the sun moved around the earth.
( ) 3. Thousands of years ago the earth was the center of everything.
( ) 4. Now we know that the earth is one of nine planets moving around the sun.
( )5the earth belongs to the solar system
【答案】
1 T
2 T
3 F
4 T
5 T

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