二里头文化是我国考古史上的重大发现，具有重大的意义。二里头文_爱下问搜题

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问题单项选择题

二里头文化是我国考古史上的重大发现，具有重大的意义。

二里头文化在类型上可以分为______

A．二里岗、二里头
B．二里岗、东下冯
C．二里头、东下冯
D．二里头、洛达庙

答案

参考答案：C

解析：本题考查对于二里头文化的类型的划分。二里头文化分为两个类型，一个是以二里头遗址为代表的“二里头类型”，一个是以东下冯遗址为代表的“东下冯类型”。

完形填空

完形填空。

     Look   1   picture    2 .  Jim's room. His family    3   is on the wall.   4     jacket is on the bed. His
computer   5   on  the table. His keys are   6 the   drawer. His pencils    7   in the pencil case. Where
   8   his baseball? Oh, it's   9    the floor.   10   likes his room very much.

( )1. A. at
( )2. A. for
( )3. A. photos
( )4. A. He's
( )5. A. am
( )6. A. on
( )7. A. am
( )8. A. am
( )9. A. on
( )10. A. He's

B. on
B. of
B. name
B. He
B. is
B. at
B. is
B. is
B. in
B. He

C. of
C. at
C. photoes
C. His
C. are
C. of
C. are
C. are
C. of
C. His

D. in
D. in
D. photo
D. Him
D. be
D. in
D. be
D. /
D. at
D. Him

选择题

同一直线上的两个力作用在同一物体上，已知其中一个力是400牛，合力是1000牛，则另一个力[ ]

A、一定是等于600牛　　

B、一定是小于600牛

C、可能等于1400牛　　

D、一定是大于1400牛