仔细观察图中所示的A、B、C三幅实验探究图,将对应的字母填入下面的空格处. (

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问题:

仔细观察图中所示的A、B、C三幅实验探究图,将对应的字母填入下面的空格处.

(1)______图主要反映做功可以改变物体的内能;

(2)______图能够探究发电机的工作原理;

(3)______图能够探究电动机的工作原理.

考点:电磁感应的应用(动圈式话筒、发电机)直流电动机物体内能的改变方法(做功、热传递)
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一五计划期间的主要成就有:武汉长江大桥、青藏铁路、长春一汽、沈阳飞机制造厂等。

题型:问答题

急性肾小球肾炎是()。

A.光镜下为弥漫性肾小球病变,以内皮细胞及系膜细胞增生为主要表现

B.光镜下通常以广泛的肾小球囊腔内有大新月体形成

C.光镜下肾小球基本正常,近端肾小管上皮细胞可见脂肪变性

D.光镜下常见的病理改变为系膜细胞和系膜基质弥漫重度增生

E.光镜下表现为受累节段的硬化,相应的肾管萎缩,肾间质纤维化

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Colleges in the US have added a new subject, “great chemistry”, to their curriculum today. “Green chemistry (53) how we can develop products that won’t (54) the environment,” explains Paul Anastas, director of Yale University’s Center for Green Chemistry and Green Engineering, opened at the beginning of this year. The American Chemical Society, (55) approves more than 600 college chemistry programs, only lists about a dozen that teach green chemistry. But that (56) is growing.
Cambridge College in Massachusetts is offering “ an introduction to green chemistry” course this gall and is offering the nation’s first bachelor’s and master’s (57) in green chemistry. The program will have classes in environmental science and even environmental (58) and policy. These subjects are not (59) taught to chemistry major.
Employers (60) the introduction of green chemistry. Businesses are increasing seeking graduates (61) backgrounds in the subject because it can help them make or save money in he development and manufacturing of products. “We need people who can not only understand their place (62) , but also understand the worldwide perspective,” said Adam Peterson, a chemical division manager at Dow Corning Corp.

A.dislike
B.ignore
C.welcome
D.enjoy

题型:问答题

腹泻患儿第1天补液,不正确的是()

A.见尿后及时补钾

B.脱水性质不明时,可按等渗性脱水处理

C.液体包括累积损失量、继续损失量和生理需要量

D.应预防性补充葡萄糖酸钙

E.累积损失量应在8~12小时补完

题型:问答题

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