以下哪种学校课桌的排放方式不利于师生之间的交往及生生之间的交往（ ）
A． 秧田式
B．圆桌式
C．马蹄型
D．半圆型
参考答案：A
Two mirrors are placed right angles (直角) to each other, and a clock is put in front of the mirror like the
picture. The clock is placed facing the mirror like the picture. A person standing in front of the other mirror
will see the time is ______.
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A. 2:35
B. 9:25
C. 1l:20
D. 5:50
按照会议的（）不同，把会议分为年会、代表会议、论坛、专题学术讨论会等类型。
A.涉及的内容
B.举办主体
C.组织形式
D.议题
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