(1)在淀粉KI溶液中,滴加少量NaClO溶液,并加入少量硫酸,溶液立即变蓝,这是因为________________________,有关反应的离子方程式是__________________________
I don’t know ________. Could you help me? A. where is his new address B. where is his new home C. where his new address is
我国四大发明中哪两项是唐朝时期出现的( )A 造纸术、印刷术 B 印刷术、火药 C 指南针、火药 D 造纸术
28. The stream in front of our village will dry_____ when early autumn comes around. A. out B. away C. off
从A、B、C、D四个选项中,找出其划线部分与所给单词的划线部分读音相同的选项。 1.grain A.maintain B.Britain
(2011·海南省嘉积中学质量检测)下列词语中加点的字,每对读音都不相同的一组是( ) A.勾结/勾当 扫除/扫帚 咽气/狼吞虎咽 兴奋/兴高采烈 B.奔跑/投
“横看成岭侧成峰,远近高低各不同。不识庐山真面目,只缘身在此山中。”据此回答10~11题。 10.下列关于庐山小区域调查的说法,正确的是( ) ①