正确答案: B

铝锅盛放酸菜

题目：下列做法易使金属被腐蚀的是

解析：B

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学习资料的答案和解析：

[单选题]Don’t discuss the problems with your partner unless you??____________ to do so.

are asked

[多选题]关于声现象下列说法正确的是 【 】

真空不能传声是通过实验与推理的方法获得的

发出较强声音的喇叭能使它前面的烛焰“跳舞”，说明声波能传递能量

课堂上听到老师的讲话声,说明声音可以在空气中传播

解析：ABC

[单选题]根据文意，下列理解错误的一项是（3分）

中国古代的文化名人都非常喜爱种植桂花。

[单选题]有一组数据：10，30，50，50，70．它们的中位数是

50

[单选题]28． Tom went into a restaurant to _______ ．

have lunch

解析：28.B【解析】由“after lunch"可知是去吃午饭。

[单选题]BJack is a famous writer now．But he said he was not a good student when he was young．He was often late for class and didn’t like doing his homework． Sometimes he slept in class while the teacher was teaching．He didn't understand much, but he always thought he under-stood everything．．

clever

解析：26.C【解析】由第一段可知Jack小时候并不聪明，也不勤奋，故选C.

[单选题]6．Eventhoughit tomorrow，l _______there．

rains ; will go

解析：6．c【解析】even though引导让步状语从句，主句是一般将来时，从句用一般现在时。故答案为C。

[单选题]29． Mr Smith is _________．．

an Englishman

解析：29．A【解析】根据文中“This is Mr Smith. He is an Englishman．”可知，Mr Smith是一个英国人。