皮皮学，免费搜题
登录
搜题
【判断题】
确定调查对象是制定调查方案的首要问题A.
正确
B.
错误
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【简答题】rain cats and dogs
【单选题】Why do people use "cats and dogs" to refer to heavy rain?
A.
During heavy rain in the 17th century England, some city became raging rivers carrying a large amount of dead cats and dog, which seems like the cats and dogs are poured with the rain.
B.
In England, there were a large amount of cats and dogs in the streets of many cities.
C.
Cats and dogs like to play around during heavy rain.
【简答题】rain
cats and dogsA. 下倾盆大雨 B. 三伏天
【简答题】m和n是两个不同的质数，m+n+mn的最小值是p，求 m 2 + n 2 p 2 的值．
参考解析：
知识点：
题目纠错 0
发布
