RS－232是一种串行总线接口标准，其中RS是RunSystem的缩写。_爱下问搜题

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问题判断题

RS－232是一种串行总线接口标准，其中RS是RunSystem的缩写。

答案

参考答案：错

完形填空

完形填空。

We are middle school 1____________. We are 2____________ Grade 7. Kate, Mike, Lucy 3____________
I are in Class One. Kate 4____________ eleven. Mike and Lucy are twelve. I am thirteen.
We have a new 5____________. In it you can 6____________ 40 desks and chairs. A blackboard, a clock
and a map are on the wall. The map is a 7____________ China. 8____________ brooms are behind the door.
On a desk you can see some pens. The red 9____________ is Kate's. Look at the clock. It's four o'clock. It's
time 10____________ play games.

( ) 1. A. students
( ) 2. A. at
( ) 3. A. of
( ) 4. A. be
( ) 5. A. home
( ) 6. A. see
( ) 7. A. map
( ) 8. A. This
( ) 9. A. pencil
( ) 10. A. come

B. teachers
B. to
B. but
B. am
B. grade
B. look
B. map's
B. That
B. one
B. to come

C. boys
C. on
C. and
C. is
C. classroom
C. look at
C. map of
C. Their
C. pen
C. go

D. girls
D. in
D. or
D. are
D. class
D. see at
D. of map
D. The
D. pens
D. to

填空题

所谓（），就是根据研究的目的，运用一定的物质手段，主动干预或控制研究对象，在典型环境中或特定条件下进行的一种探索活动。