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【多选题】
幼儿园课程实施的途径是哪三种?A.
教学活动
B.
游戏活动
C.
生活活动
D.
班级活动
手机使用
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反馈参考答案：
举一反三
【单选题】The theory is of great importance _____ the hotter a body is, the more energy it gives off.
A.
which
B.
that
C.
when
D.
what
【单选题】From facts, scientists have that more energy is being absorbed from the sun, throwing the earth’s energy “out of balance”.
A.
confirmed
B.
concluded
C.
concentrated
D.
centred
【简答题】电弧焊对弧焊变压器有何要求?如何满足这些要求?
【单选题】Choose the best option for the sequence of A and B. The centre or nuclei of the atoms fuse together. This in turn releases more energy and causes the star to heat up.A= the nuclei of the atoms fuse to...
A.
happens first
B.
happens first
C.
A and B happen at approximately the same time
D.
Not given
【单选题】单作用叶片泵具有何结构特点
A.
作用在转子和定子上的液压径向力平衡
B.
所有叶片的顶部和底部 所受液压力平衡
C.
不考虑叶片厚度，瞬时流量是均匀的
D.
改变定子和转子之间的偏心可改变排量
【单选题】．The theory is true _______ the hotter a body is, the more energy it gives off.
A.
that
B.
when
C.
which
D.
what
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