题目

(2010·福建厦门外国语学校高三第一次月考)      29. The thief ran away when the burglar alarm ________. A. went up            B. went off            C. went out            D. went away 答案:B5.分别将一滴红墨水滴入两杯同样多的水中,如图所示,发现墨水在热水中扩散得快(填快或慢),这现象说明温度越高扩散越快.
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