第20题第2,3小题,正确必采.&_百度作业帮
第20题第2,3小题,正确必采.&
做好了真的给？
恩（2）. 设存在符合题意的D点，由S△ADE=S△BCE可得AE=BE ，DE=CE。设E（x,0）,
则BE=√（2-x） +4 ， AE=x＋2，
由√（2-x） +16=x+2求出 X=2
E（2，0）,CE=3
设D（0，y）,DE=√2 +y , CE=3,求出 y=±√5五．短文改错（共8小题；每小题1分，满分8分）文中共有8处语言错误，请在错误的地方增加、删除或修改某个_百度知道
五．短文改错（共8小题；每小题1分，满分8分）文中共有8处语言错误，请在错误的地方增加、删除或修改某个
请在错误的地方增加；每小题1分. Luckily at the five store he got an used book：在错的词下划一横线, I stepped into a bookstore for some books I wanted them。增加, and four times he disappointed，并在其下面写出该加的词：把多余的词用斜线（＼）划掉. Four stores we entered, I see a young boy of about 12 come into the store：在缺词处辐一个漏字符号（∧），多者（从第9处起）不计分. I decided to follow him to see whether he could succeed, but he had only 62 cents。删除. Geography books paid one dollar each、删除或修改某个单词. The boy wanted to buy a geography book：1．每处错误及其修改均仅限一词，在该词下面写上修改后的词
五．短文改错（共8小题。Many years ago。注意；2．只允许修改8处, and the bookseller gave him some writing papers and a new pencil as a gift，满分8分）文中共有8处语言错误。修改. Having learned why he wanted the book. While I was there
提问者采纳
&& 7;&& 2; 4; 6;&nbsp
1;&&&nbsp.he后加was5.see → saw&&nbsp.paid → cost&nbsp.去掉and&nbsp.an → a&&nbsp.five → fifth&&&& 8;& 3;&&nbsp.去掉them&nbsp
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出门在外也不愁有一份选择题试卷共6个小题，其得分标准是：一道小题答对得8分，答错得0分，不答得2分，某位同学得了20分，则他（）
有一份选择题试卷共6个小题，其得分标准是：一道小题答对得8分，答错得0分，不答得2分，某位同学得了20分，则他（）
　A.至多答对一道题 B.至少有三个小题没答
　　C.至少答对三个小题 D.答错两个小题
答错两小题.　
若最多对一题,那另五题全不答总分也只有十八,故A错　
对两题错两题不答两题正好二十分,故B错　
对三题就二十四分了,C也就没戏了,　
答案是D
唯一可选的答案：D
如果是A,至多答对一题，那有5道题未答或答错，按都不答计分，最多得8+5x2=18分。
如果是B,至少有三题未答，那么按余下三题都答对算，得分8x3=24分，答对2题，另一题不答，得分8x2+2=18分，一次类推，得分都不能是20分。
如果是C,.至少答对三个小题,按余下三题都答错算，得分8x3=24分，如果余下3题都不答，得分更多。
D&&& 答错2题，答对2题，另2题不答，得分：2x8+2x2=20分，这种情况下刚好得分20分。
真是自己做的？
我已经分析得这么明白了，还能抄别人的？更何况这么小儿科的题目。
其他回答 (3)
题目有问题。
D.答错两个小题
答错两个小题得0分；答对两个小题得16分；没答两个小题得4分。则总分加得：20分。
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外语领域专家V .短文改错（共8小题；每小题1分，满分8分）此题要求改正所给短文中的错误。对标有题号的每一行作出判断_百度知道
V .短文改错（共8小题；每小题1分，满分8分）此题要求改正所给短文中的错误。对标有题号的每一行作出判断
&&&&&nbsp.&& 87________N&94. ________their Engli&&nbsp：该行多一个词;&nbsp，在该行右边横线上写出该加的词：在缺词处加一个漏字符号（∧），在该行右边横线上写出该词. Today
V ;&&nbsp，则按下列情况改正;&&&nbsp。对标有题号的每一行作出判断;&nbsp, unless you want to do busi&&nbsp. ________newspapers and magazines in English and lear&86。该行错一个词;&& 92. English is one&nbsp.________books were written in English：如无错误.________of the working language at in&nbsp，满分8分）此题要求改正所给短文中的错误;&&& 91. &nbsp：在错的词下划一横线，在该行右边横线上写出改正后的词：原行没有错的不要改. ________ English is &&&nbsp；如有错误（每行只有一个错误）;&&nbsp。The English language has become a international language because&nbsp. I hope all the students will pay more much attention to 95：把多余的词用斜线（）划掉;&nbsp. If you know English well，并也用斜线划掉;&&&nbsp。该行缺一个词;&&& 89;&&&nbsp。注意. &nbsp. ________ 90;&nbsp, most important&nbsp. ________it is using by people in more countries than any other language, you must learn&nbsp, and many students don’t know why they&nbsp, you can read && 93; 88.________English because most them speak and write in E&&nbsp. ________You can also do that you can to make the world peaceful，在该行右边横线上画一个勾（√）；每小题1分.短文改错（共8小题
提问者采纳
88; 95; 91.正确& 92;&nbsp.unless 改为if&&94.were改为are&nbsp.language改为languages& 87; 90
86; 93;&nbsp.most后加of&nbsp.using改为used&nbsp.that改为what&nbsp.a改为an& 89;&nbsp.and改为but&&nbsp
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出门在外也不愁第Ⅱ卷第四部分：短文改错（共8小题，每小题1分，满分8分）假如英语课上老师要求同学们交换修改作文，请_百度知道
第Ⅱ卷第四部分：短文改错（共8小题，每小题1分，满分8分）假如英语课上老师要求同学们交换修改作文，请
When I got into the classroom：短文改错（共8小题
第Ⅱ卷第四部分。注意、删除或修改某个单词. I ran out of my house angry and walked on the street for a while. And when I got home, one classmates told me that my mother had brought my lunch box here，并在该词下面写上修改后的词：在缺词处加一个漏词符号（∧）. Then I walk to school。One day I deeply felt the deep mother love surrounding me：1，请你修改你同桌写的以下作文, because there would be a exam in the afternoon and I had expected to return to school early to prepare for the exam. I felt very happy. My eyes were filling with tears。删除. I went to home for lunch quickly after school. When two dishes were seen, I found neither I liked；　　　2，多者（从第9处起）不给分：把多余的词用斜线（＼）划掉，要求你在错误的地方增加。文中共有8处语言错误：在错的词下划一横线.只允许修改8处.每处错误及其修改均仅限一词。增加, I found my favorite food inside，并在其下面写上该加的词，满分8分）假如英语课上老师要求同学们交换修改作文, the lunch was not ready yet. After opened the box，每小题1分。修改
提问者采纳
&walked on th&nbsp, one
walked&nbsp. When I go&&&&&&&&&&nbsp. My eyes wer&&&&nbsp. Then I&&& opening&&&&&&&&nbsp. filled&&nbsp. A&&&&&&&&&&&&&&&nbsp, the lun&&&&&&&&school early to &&&&&&my &&&&&&&&&&&&&&&nbsp. I felt
but&&&&&&&nbsp. And when I&&&&&&&nbsp. When &&&&&&&&&&&&&&nbsp, I found classmate&&&&&&&&&&&&&&&&&&nbsp, because there would be a exam in the afternoon and I had expected to return to
an&&&after school. I ran out of my house angry and angrily&&&nbsp
One day I deeply felt the deep mother love surrounding me, I found neither I&&nbsp. I went to home for lunch quickly 去掉&&&&classmates told me that my mother had broug&&&&&&&&nbsp
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出门在外也不愁