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【单选题】
下面四条常用术语的叙述中，有错误的是（）A.
读写磁头是既能从磁表面存储器读出信息又能把信息写入磁表面存储器的装置
B.
计算机的硬件平台至少要包含主机和支持应用所必须的外部设备
C.
计算机的硬件计算环境最主要的是内存容量
D.
总线是计算机系统中各个部件之间传输信息的公共通路
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反馈参考答案：
举一反三
【单选题】We 're trying ___________ barriers between young people from both communities .
A.
to break down
B.
break down
C.
broke down
D.
broked down
【简答题】朗读第十三课课文对话并上传录音。
【简答题】Both communities have a tradition of keeping history ________.
【判断题】Local communities employ both knowledge and resources to prevent desertification.
A.
正确
B.
错误
【单选题】What are the similar key elements of both the human communities and the communities of animal world?
A.
Roles of individual members and rules to make sure the community functions in an orderly way.
B.
Roles of the group leader and protection from the group leader.
C.
Roles of community members and functions of group leader.
【单选题】They have begun dialogues to _____ ( 提升 ) better understanding between both communities.
A.
promote
B.
publish
C.
provoke
D.
provide
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