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【简答题】
完形填空。 My name is Dave. I __ 1 __ a good friend. His name is Tom. He is Chinese. He is in Beijing __ 2 __ his parents now.  His mother is our English __ 3 __ . His fatheris a math teacher.  They alllike their jobs.  Tom is __ 4 __ years old.  He in Class one, Grade Nine.  I'm in Class One, __ 5 __ . I'm in Grade Seven. Tom is a good boy. He often helps me with my Chinese. He likes English food. We often go to the restaurant for dinner. Oh, Tom has a little (幼小的) sister. __ 6 __ name is Linda.  She is only three years old.  She likes bananas and apples. I often __ 7 __ bananas for her. This girl likes comedies, She often __ 8 __ to see movies with her parents on weekends.  I like this girl and she likes me, too.  She says I'm very__ 9 __. Well, Dave has an aunt.  Her name is Cindy.  She works at Huaxing Clothes Store.  She gets up at six every morning and she gets home at six every evening. She likes playing __ 10 __ piano and she has a piano. She wants to join the music club. (     ) 1. A. has (     ) 2. A. with (     ) 3. A. teach (     ) 4. A. fifth (     ) 5. A. and (     ) 6. A. Her (     ) 7. A. call (     ) 8. A. goes (     ) 9. A. boring (     ) 10. A. a B. have B. and B. teaches B. first B. at B. She B. buy B. go B. difficult B. an C. is C. of C. teaching C. fifteen C. for C. They C. is C. going C. funny C. the D. are D. at D. teacher D. second D. but D. We D. has D. get D. not well D. /
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举一反三
【简答题】课堂结构包括课堂________与课堂________。
【简答题】设随机变量X服从参数为λ的泊松分布,已知P{X=1}=P{X=2},求P{X=4}。
【判断题】老师准备了一份习题集,需要开学后打印,作为课堂练习题。
A.
正确
B.
错误
【判断题】习题集厚15毫米。 [     ]
A.
正确
B.
错误
【简答题】DO测定课堂笔记
【判断题】绘制建筑总平面图时常用的比例为1:1001:200和1:500。
A.
正确
B.
错误
【单选题】“季秋之月, 鞠有黄华”说的是下列哪种花卉
A.
菊花
B.
海棠
C.
木槿
D.
桂花
【单选题】设随机变量X服从参数为λ的泊松分布,且已知E(X-l)(X-2)=1,则λ=( )。
A.
1
B.
2
C.
3
D.
4
E.
5
【单选题】设随机变量 X服从参数为λ的泊松分布,且已知 E[(X - 1)(X - 2)]=1,则λ=()
A.
0
B.
1
C.
2
D.
3
【判断题】设随机变量 X服从参数为 λ的泊松分布,且已知 E[(X - 1 )(X - 2 )]=,则必有P{X=0}=P{X=1}。()
A.
正确
B.
错误