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【单选题】
在电位分析中测量的化学电池的参数是( )A.
电池的端电压
B.
电池的电动势
C.
电池的U与I的变化
D.
电池的IR降
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举一反三
【单选题】Merge the following two short sentences into one new sentence.
A.
Split
B.
Combine
C.
Break
D.
Divide
【简答题】根据所学课文内容填空 At first my new 1 were difficult to tolerate. The air seemed thin, as 2 its combination of gases had little oxygen left. 3 by a lack of fresh air, my head ached. Wang ping handed a mask to ...
【简答题】阅读理解。 A child-like robot. Wakamaru, developed by Mitsubishi Heavy Industries of Japan and combining the roles of nurse, companion and security guard, will soon be in the market to look after the growi...
【单选题】In our country the cold weather in the north_____ sharply _____the hot weather in the south.
A.
combines；with
B.
relates；to
C.
compares；with
D.
contrasts；with
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