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【单选题】
针对儿童的呼吸系统的特点,我们应采取的保教措施错误的是( )A.
多组织户外活动
B.
教会幼儿擤鼻涕
C.
保护嗓子
D.
大声喊叫,锻炼嗓子
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【简答题】The cooling water in the HT(high temperature) circuit cools the cylinder liners, cylinder heads and turbocharger. From the pump water is supplied to the engine manifold which is cast in the engine blo...
【简答题】 2 The cooling water in the HT (high temperature) circuit cools the cylinder liners, cylinder heads and turbocharger. From the pump water is supplied to the engine manifold which is cast in the engin...
【简答题】The cylinder head is usually cast in one piece from iron, from iron alloyed with other metals, or from aluminum alloy. Aluminum has the advantage of combining lightness with high heat conductivity .th...
【简答题】The cylinder block of liquid-cooled engines forms the basic framework of the engine. Other parts are attached to the cylinder block or are assembled in it. The block is cast in one piece from gray iro...
【单选题】The block is cast in one piece from ________ or iron alloyed with other metals, such as nickel or chromium.
A.
gray iron
B.
gray
C.
iron
D.
irons
【单选题】中国茅台酒的酒度为 53 度,是指( )。
A.
每 100 克酒中含有纯酒精 53 克
B.
每 100 克酒中含有纯酒精 53 毫升
C.
每 100 毫升酒中含有纯酒精 53 毫升
D.
每 100 毫升酒中含有纯酒精 53 克
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