【名词&注释】
自然灾害(natural disaster)、亲身经历(personal experience)、化学变化(chemical change)、看电视(watch television)
[单选题]我国是自然灾害频发的国家，灾害中常有如下现象发生，其中属于化学变化的是（ ）。
A. 冰雪融化
B. 房屋倒塌
C. 森林失火
D. 树枝折断
查看答案&解析
举一反三：
[单选题]24． The main idea of this passage is that __________．
A. we should do something helpful to other people
B. we should pick somebody up when his car is broken
C. we shouldn't accept money as a thank-you
D. we shouldn't give somebody a ride in a bus
[单选题]14．
A. watch
B. watches
C. looks
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