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【单选题】
“授人以鱼不如授人以渔”说明科学中应重视( )。A.
知识的传授
B.
发展学生的能力
C.
培养学生积极的心理品质
D.
培养学生良好的思想品德
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举一反三
【单选题】According to ancient records, natural magnets were employed in China as direction-finding devices. This led to the first compass, called ( ) during the Warring States Period.
A.
Si Nan
B.
wet compass
C.
dry compass
D.
navy compass
【单选题】What was the purpose when the magnetic compass was first invented?
A.
Divination.
B.
Navigation.
C.
Enjoyment.
D.
War.
【单选题】According to ancient records, natural magnets were employed in China as direction-finding devices. This led to the first compass, called ( ) during the Warring States Period.
A.
wet compass
B.
Si Nan
C.
dry compass
D.
navy compass
【单选题】Nearly two thousand years have passed______ the Chinese first invented the compass.
A.
when
B.
before
C.
since
D.
after
【单选题】创建网页中的拖动层行为效果,要选择事件为鼠标移动到对象上面是( )。
A.
OnClick
B.
OnMouseup
C.
OnMousetop
D.
OnMouseOver
【单选题】According to ancient records, natural magnets were employed in China as direction-finding devices. This led to the first compass, called ____during the Warring States Period.
A.
Si Nan
B.
navy compass
C.
wet compass
D.
dry compass
【简答题】为80C51单片机扩展行列式按键，1个并行口最多可以扩展______个按键。
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