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【判断题】
汇交平衡的必要和充分条件是:的合力矢等于零。A.
正确
B.
错误
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参考解析：
知识点：
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【简答题】影响反馈效果的因素有（ ）
【简答题】阅读理解 Music died here last spring, or rather, it was killed by members of the school committee who ignored the importance of music and drama as part of the highschool curriculum. The committee decided ...
【简答题】Music died here last spring, or rather, it was killed by members of the school committee who ignored the importance of music and drama as part of the high-school curriculum. The committee decided that...
【单选题】The school committee hoped that their choice of play would be ______ with the students and their parents,
A.
recognized
B.
popular
C.
favorable
D.
fascinated
【单选题】The school committee naturally hope that their choice of play will be __ with the school and parents.
A.
content
B.
pleased
C.
favorable
D.
popular
【单选题】影响传播效果的因素有
A.
社会环境、传播者、信息、媒介、受众
B.
自然环境、传播者、信息、媒介、受众
C.
环境、传播者、信息、媒介、受众
D.
传播者、信息、媒介、受众、反馈
E.
传播者、信息、媒介、受众、效果
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