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【简答题】
阅读收集信息探究: 热沿着物体传递的方式叫传导.我们把善于导热的物质叫热的良导体,不善于导热的物质叫做热的不良导体. 下面是从生活中查找的一些物质的应用情况: 物质 棉花 玻璃 铁 铝 塑料 石棉 应用 棉被 窗 锅 壶 锅把 隔热层 (1)上述材料属于热的良导体的是:______. (2)属于热的不良导体的是:______.
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皮皮学刷刷变学霸
举一反三
【单选题】以下有机物中含酮基的是
A.
CH3CH=CH2
B.
CH3COCH3
C.
CH3CH2NH2
D.
CH3OH
【单选题】Which one of the following is the best title for this passage?
A.
The Negative Effect of Wilderness Tourism
B.
Harnessing the Value of Wilderness Tourism
C.
Wilderness Tourism is going Through a Tough Time
D.
My Own Experience with Wilderness Tourism
【单选题】Which one of the statements is NOT the negative effect of monopolies?
A.
set any price they choose
B.
make large profit
C.
lose incentive to innovate
D.
supply inferior products
【单选题】增值税扣缴义务发生时间为纳税人增值税纳税义务发生的当天。( )
A.
B.
【多选题】有意想象可以分为哪几类?()
A.
实体想象
B.
再造想象
C.
创造性想象
D.
科学幻想
【单选题】One negative effect of the Industrial Revolution was ________.
A.
the invention of the steam engine
B.
the child labor
C.
the increase in trade
D.
the invention of the Spinning Jenny
【单选题】One negative effect of the Industrial Revolution was ______.
A.
the invention of the steam engine
B.
child labor
C.
the increase in trade
D.
the invention of the spinning jenny
【单选题】 One negative effect of the Industrial Revolution was .
A.
the invention of the steam engine
B.
child labor
C.
the increase in trade
D.
the invention of spinning jenny
【判断题】增值税扣缴义务发生时间为纳税人增值税纳税义务发生的当天。
A.
正确
B.
错误
【多选题】造成液压制动系统进入空气的原因有
A.
拆检制动系统
B.
接头松动
C.
制动液不足
D.
制动液气化
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