皮皮学，免费搜题
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【单选题】
水源污染易引起的传染病为()A.
呼吸道传染病
B.
消化道传染病
C.
创伤感染
D.
皮肤感染
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知识点：
皮皮学刷刷变学霸
举一反三
【简答题】You are given many opportunities in life to choose to be a victim or a creator. When you choose to be a victim, the world is a cold and difficult place. “They” did things to you which caused all of yo...
【简答题】When I was a child, there was a fair (集市) every autumn in my town. Lots of people from other towns to sell and buy things. During the fair, my became the busiest person of the family. All of her relat...
【多选题】下面哪些算式运用了乘法分配律？ [ ]
A.
37×6+37×4=37×（6+4）
B.
9×a+13×a=（9+13）×a
C.
78×（5×6）=78×5×6
D.
35×（2+8） =35×2+35×8
【简答题】P78第1、4、7、11、13、15、16。
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