热点试题

[ 数学 ] 生物学家发现一种病毒和长度约为0.000 043mm,用科学记数法表示这个数的结果为 [ 

生物学家发现一种病毒和长度约为0.000 043mm,用科学记数法表示这个数的结果为[    ]
A.4.3×10﹣4
B.4.3×10﹣5
C.4.3×10﹣6
D.43×10﹣5

2016-05-17 | 0

[ 数学 ] . 用加减法解方程组中,消x用    法,消y用    法(   )A.加,加B.加,减C

. 用加减法解方程组中,消x用    法,消y用    法(   )
A.加,加B.加,减C.减,加D.减,减

2016-05-18 | 0

[ 数学 ] 2平方千米=______公顷100公顷=______平方千米200平方厘米=______平

2平方千米=______公顷
100公顷=______平方千米
200平方厘米=______平方分米
3公顷=______平方米
8平方千米=______公顷.

2016-05-21 | 0

[ 数学 ] 购物。

购物。

2016-05-21 | 0

[ 数学 ] 设向量a,b,c满足a+b+c=0,(a-b)⊥c,a⊥b,若|a|=1,则|a|+|b|

设向量abc满足a+b+c=0,(a-b)⊥cab,若|a|=1,则|a|+|b|+|c|的值是(    )。

2016-05-25 | 0

[ 英语 ] 阅读理解。 Mike's plan for next week Mary's plan f

阅读理解。
Mike's plan for next week Mary's plan for next week
Monday Study group meeting 3:00 p.m. Go to the cinema with Alice 7:00 p.m.
Tuesday Basketball match 4:30 p.m. See a doctor 11:00 a.m.
Wednesday Go to see some friends 2:00 p.m. Help Uncle Smith in the restaurant-afternoon Study for an exam-evening
Thursday Art class 7:30-8:30 p.m. Concert 8:30 p.m.
Friday volunteer(志愿者)work at student center 2:00-4:00 p.m. Help Uncle Smith in the restaurant- afternoon
Saturday Shopping 10:00 a.m. Art class 7:00-8:00 p.m.
Sunday Basketball team party 8:00 p.m. Supper with Ann 7:30 p.m.
1. Mary is going to the cinema at seven on _________.   
A. Monday evening    
B. Wednesday evening   
C. Friday evening    
D. Sunday evening
2. On Wednesday afternoon Mike is going to _________  
A. enjoy the concert      
B. see some friends   
C. see a doctor         
D. have an art class
3. Mary is going to _________ on Wednesday evening.   
A. have supper with Ann     
B. have a basketball party   
C. study for an exam       
D. watch a basketball match
4. Mike's basketball team party starts at ________on Sunday  
A. 7:30 p.m.    
B. 8:00 p.m.   
C. 8:30 p.m.   
D. 9:00 p.m.
5. From Mike's and Mary's plans we know that they both like ________.   
A. shopping    
B. concerts   
C. art   
D. music

2016-05-27 | 0

[ 英语 ] 英汉互译。 1. 首都 ___________________3. 看起来不同 _____

英汉互译。
1. 首都 ___________________
3. 看起来不同 ___________________
5. 戴眼镜 ___________________
7. at night ___________________
9. point up ___________________
11. Here it is. ___________________
2. 多大 ___________________
4. 乘小汽车 ___________________
6. 散步 ___________________
8. play with ___________________
10. speak English ___________________
12. too…to ___________________

2016-05-28 | 0

[ 英语 ] Success in life doesn’t happen        . It’s

Success in life doesn’t happen        . It’s the result of devoting your time and energy to what you’ve set out to do.
A.in caseB.by chanceC.in returnD.by nature

2016-05-28 | 0

[ 物理 ] 2008年4月12日,“歌舞青春 助威奥运”泰州演唱会在市新体育场盛装上演,表演时观众能区

2008年4月12日,“歌舞青春 助威奥运”泰州演唱会在市新体育场盛装上演,表演时观众能区别出不同乐器发出的声音,主要是根据它们发出的声音有不同的(  )
A.响度B.音色C.音调D.三者皆有

2016-05-29 | 0

[ 物理 ] 有两只小灯泡串联在电路里,且都正常发光,某一时刻,其中一只灯泡坏了,则另一只灯泡 [   

有两只小灯泡串联在电路里,且都正常发光,某一时刻,其中一只灯泡坏了,则另一只灯泡 [    ]
A.照常亮
B.比原来暗
C.比原来亮
D.一定不亮

2016-05-30 | 0