这道题怎么做：阅读理解。_百度知道
这道题怎么做：阅读理解。
we need more people, smell it. A. To pollute means to make air, 除去)& produced B. &nbsp. This means keeping the land. B;&nbsp, not more waste C, we know that ______;&nbsp.
There weren't so many people then and their wants were fewer. All the dirty things could be absorbed (吸收) by nature and soon covered over, the problem was not so serious because there was plenty of clean air. We live on the earth. A;&nbsp, washed his clothes in the river and threw his waste on the ground. C. Which of the following sentences is NOT true according to the passage. still doesn't realize how serious pollution is C. D. polluted the land C;&nbsp, t&nbsp. A;& Through the use of poison. Pollution is a dirty word. When land was used up o we must take care of it,
our ha& The earth is our home。
&nbsp, more waste. Pollution is beginning to threaten (威胁) our health. doesn't know how to control pollution B. &nbsp
阅读理解. All the waste produced by modern industry can be absorbed. More people? Luckily, or is there any
hope that we can get rid of (摆脱, water and land unfit for use. is doing something to control pollution D. To pollute means to make things unf&nbsp. The increase of population and the
development of industry(工业)have changed that. 2. 1, men moved on to another
place. W&nbsp. all of the above 4. because of the increase of population and the development of industry. A, Where is this all to end. &nbsp. &nbsp. Man is now fighting against differen& Our increasing population is&&nbsp. From the passage we can know that now man ______. 化学
B, so we should look after it. From the sentences "M&nbsp. Pollution comes in many ways. Man is slowly poisoning (毒害) Man has been polluting the earth from the time he first made fire? Are we turning the world into a big rubbish dump (堆存处), land and water. At first. 化学的
D. more people have been warned of the danger of more waste 5;&nbsp. Through the uncontrolled use of poison man has ______. made the drinking water dirty B;&nbsp, millions of people have been warned of
the danger of pollution. 化学物质
C. In this passage the word "chemicals" means ______. But th&nbsp? A. 医学的 3, killing the fish, more waste", man has polluted the land. By putting dirty water and
chemicals into rivers and lakes we have polluted our drinking water, air and water clean. there isn't any hope that we can get rid of the pollution D, more and more waste is
&&nbsp. Large numbers of people are now working hard to bring pollution under control. killed the animals D
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出门在外也不愁这道题怎么做?A rectangle is inscribed with its base on the x axis and its upper comers on the parabola y=5-x^2. What are the dimensions of such a rectangle with the greatest possible area?想问一下是可以变成求S（y）=2y乘根号下(5-y)的最大值吗 ?==>或者说求S^2=20y^2-4y^3的最大值?
清枫yy10233
upper comer是指的矩形的两个上定点吗?如果是的话就很简单了建系,设坐标,求导.设右上定点为（x,5-x^2）(0
不用导数呢..?
求S（y）=2y乘根号下(5-y)的最大值,求S^2=20y^2-4y^3的最大值,这两个都是可以的，但是不用导数我也不会求，你就用导数呗。不过如果用导数的话，最好用我的设法求导，因为求S（y）=2y乘根号下(5-y)的最大值涉及对根号求导，容易出错，求S^2=20y^2-4y^3的最大值求完了容易忘记开平方。
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大家来看这道题应该怎么做？
前37个自然数的和加上1998，所得的结果等于另外37个连续自然数的和，这37个自然数中最小的是多少？
前三十七个自然数的和是(1+37)x37/2=703
703+01/37=73 73--(37--1)/2=73--18=55
前37个自然数平均每个加了999/37=27所以原来最小的自然数为1，加后37个自然数中最小为1+27=28 对了吧
前三十七个自然数的和是(1+37)x37/2=703
703+01/37=73 73--(37--1)/2=73--18=55
前三十七个自然数的和是(1+37)x37/2=703
703+01/37=73 73--(37--1)/2=73--18=55
设前37个最小的自然数为a,另外37个最小的自然数为b,那么37b-37a=1998,即b-a=54,前37个最小的自然数是1，另外37个自然数中最小的是55。
(1+37)x37/2=703
703+01/37=73 73--(37--1)/2=73--18=55
前37个自然数平均每个加了999/37=27所以原来最小的自然数为1，加后37个自然数中最小为1+27=28
。。。。。；
前37个自然数平均每个加了999/37=27所以原来最小的自然数为1，加后37个自然数中最小为1+27=28 对了吧
前37个自然数平均每个加了999/37=27所以原来最小的自然数为1，加后37个自然数中最小为1+27=28 对了吧
这37个连续自然数中最小的是1+54=55 不知道对不对会
(1+37)x37/2=703
703+01/37=73 73--(37--1)/2=73--18=55
前三十七个自然数的和是(1+37)x37/2=703
703+01/37=73 73--(37--1)/2=73--18=55
前37个自然数平均每个加了999/37=27所以原来最小的自然数为1，加后37个自然数中最小为1+27=28
前37个自然数平均每个加了999/37=27所以原来最小的自然数为1，加后37个自然数中最小为1+27=28
设前37个最小的自然数为a,另外37个最小的自然数为b,那么37b-37a=1998,即b-a=54,前37个最小的自然数是1，另外37个自然数中最小的是55
前三十七个自然数的和是(1+37)x37/2=703
703+01/37=73 73--(37--1)/2=73--18=55
这37个连续自然数中最小的是1+54=55
前三十七个自然数的和是(1+37)x37/2=703
703+01/37=73 73--(37--1)/2=73--18=55
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这37个连续自然数中最小的是1+54=55 ，肯定是了。
前37个自然数平均每个加了999/37=27所以原来最小的自然数为1，加后37个自然数中最小为1+27=28 对了吧
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问吧达人榜瓦li（）这道题怎么做？_百度知道
瓦li（）这道题怎么做？
提问者采纳
亲，几声啊。
亲，这个词是这个：瓦砾wǎ lì破碎的砖瓦，但主要是小石头，碎石头的意思。
那这个呢？阴hui（）也是四声
阴晦，应该是这个。
得无楚之水土使善盗耶？是什么意思
啊，文言文哈，意思是：难道是楚国的水土使得百姓善于偷盗么？
提问者评价
太给力了，你的回答完美解决了我的问题！
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瓦砾（wǎlì）~~~~~~~~~~~~~~~~~~~~~~~~~~&(￣︶￣)&回答满意请采纳~ →_→谢谢，祝你学习进步~
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出门在外也不愁这道题怎么做：阅读理解.
&&&& An old man was fishing on the bank of a river. A child came to see him fishing. The old man was really
good at fishing and it didn't take long for him to catch a full basket of fish. The old man saw that the child
was very cute, and he wanted to give her a whole basket of fish. But the child shook her head. The old man
was surprised and asked, "Why don't you want the fish?"& &&&& The child replied, "I want the fishing rod (竿) in your hands."
&&&& The old man asked," Why do you want the rod?" &&& &"It doesn't take long to eat all the fish in a basket. But if I have the fishing rod, I can go fishing by myself
and I won't be afraid of not having any more fish to eat." &&&& I think you will certainly say that the child is very smart. Wrong! If she doesn't know how to fish, she
cannot have fish to eat, even though she has the fishing rod. It's useless to only have a fishing rod. Fishing
skills are the most important, not the fishing rod.
&&&& Too many people think that if they have a "fishing rod" in their life, they will no longer fear the wind and
rain. They are just like the child, who thought that if she had a fishing rod, she would have fish to eat.
1. The old man was fishing on the bank of _____.
A. a river
2. Why did the child refuse the fish the old man gave her?
A. Because she didn't like fish.
B. Because she wanted his fishing rod.
C. Because the old man had few fish.
3. The writer thought the child was _____ after she explained why she didn't want the fish.
B. hardworking
4. The article mainly tells us _____.
A. if you have&a "fishing rod" in your life, you won't be afraid of anything
B. if you have a fishing rod, you'll have a lot of fish to eat
C. "fishing skills" are more important than "the fishing rod" in life
5. What is the best title (标题) for the article?
A. The Fishing Rod
B. The Fishing Man
C. The Fishing Girl
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