1.—my bike is broken —Why not hao it（

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1.—my bike is broken —Why not hao it（
A.repair B.repaird C.repairing
2.举例：反应物浓度越大,反应效率越大（）
反应物的接触面积越大,反应速率越大（）
那个是Why not have it （打错了

1：选B 同学,您打错了,应为have it ,根据固定短语have sth.done得应选B：repair的过去分词repaird
2:两种说法都不准确：应控制变量
举例：10mL 10%的H2O2溶液与等量20%的H2O2溶液中加入等量的MnO2,前者反应速率大于后者
10g 碳酸钠固体与等量的碳酸钠粉末分别与相同质量分数的稀盐酸反应,前者速率大于后者
以后要加强背短语,也要注意控制变量,不然考试有点吃亏,一定要注意哦!

1.—my bike is broken —Why not hao it（ my bike is broken.Why not have it( My bike is broken.It needs_____ my bike is broken? My bike is broken my bike is broken.I'll have it ____ My bike is broken.It requires ______ (repair). My bike is broken.对broken提问 My bike is broken 句子成分 The reason is _____ my bike was broken?A that B why C what D -Why are you late?-My bike is broken.I'll have it____. My bike is （）1.broke 2.broken 3.good