根号下可不可以有0What is the domain and range of the function f (x) = 根号下xSolution ：Domain D :positive real numbers,range R :positive real numbers.问题是它回答的只有正整数.没有0.这怎么弄呀?

根号下可不可以有0What is the domain and range of the function f (x) = 根号下xSolution ：Domain D :positive real numbers,range R :positive real numbers.问题是它回答的只有正整数.没有0.这怎么弄呀? 根号下可不可以等于零 in triangle abc a=12 b=16 and sinB=2/3 what is the measure of angle A in degrees还有：the equation x^2+2ix-4=0 has as its toota根号下5-1,-根号下5-1b根号下5-i,根号下5+ic根号下3-i,根号下5+id根号下3-i,根号下3+ie根号下3-1,- what's the exact time 可不可以写成what time is the exact it? what fun the water Festival is 可不可以用how代替啊,没什么要用what 回答：“What color is this two dogs?”可不可以回答“The dog is white.” What is the date today?可不可以用 节日 例如：It is Father’s Day 回答 What is the girl doing?这个问题可不可以这样回答：Washing her clothes. what is the matter 该怎样回答?可不可以这样回答:I'm thirsty 有个句子 Intellect is to the mind_what__ sight is to the body.这句话中what 到底可不可以换成as,之前也见到过A is to B as C is to D.这样的句子,A is to B what C is to D 和A is to B as C is to D 到底有什么区别? 从句疑问语气?例句：I don't know what is the matter with him这里可不可以改what the matter is with him?the matter 做主语,what做宾语不行么?不要说什么固定,是不是所有从句中有what ,is,语序都不改变? 根号里可不可以为0? 有没有what is the fare what is your attitude towards the multicultural society in the 21 century?用英文回答我好吗,急用可不可以写长点 改一般疑问句的时候可不可以省略其中一部分比如说原句是There is a picture on the wall.划线部分是a picture 可不可以是What's on the wall?为什么不是What is there on the wall? what is the Prime Meridian?用英文回答下谢谢 函数：y=根号下x^3的定义域!可不可以包括0? what's the weather 跟what's the weather like? 有区别吗? 可不可以 说what's the weather in Beijing?