1.函数y=根号(x-1)+根号(2-x)中,自变量x的允许值范围是( )2.把函数y=根号(3-x)/x的自变量x允许值范围是( )1.argue的现在分词?2.She ( ) money ,she gets a part-time job.A.need B.dosen't need C.dose need D.needs to3.

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1.函数y=根号(x-1)+根号(2-x)中,自变量x的允许值范围是( )2.把函数y=根号(3-x)/x的自变量x允许值范围是( )1.argue的现在分词?2.She ( ) money ,she gets a part-time job.A.need B.dosen't need C.dose need D.needs to3.

1.函数y=根号(x-1)+根号(2-x)中,自变量x的允许值范围是( )2.把函数y=根号(3-x)/x的自变量x允许值范围是( )1.argue的现在分词?2.She ( ) money ,she gets a part-time job.A.need B.dosen't need C.dose need D.needs to3.
1.函数y=根号(x-1)+根号(2-x)中,自变量x的允许值范围是( )
2.把函数y=根号(3-x)/x的自变量x允许值范围是( )
1.argue的现在分词?
2.She ( ) money ,she gets a part-time job.
A.need B.dosen't need C.dose need D.needs to
3.He has a very ( )(开头字母是a) manner though he's only 12.
是初二下学期第二单元的

1.函数y=根号(x-1)+根号(2-x)中,自变量x的允许值范围是( )2.把函数y=根号(3-x)/x的自变量x允许值范围是( )1.argue的现在分词?2.She ( ) money ,she gets a part-time job.A.need B.dosen't need C.dose need D.needs to3.
1.1≤x≤2 (根号下的部分大于等于0)
2.0

根号下的数只能大于等于零 做分母时要大于零 没有根号的分母要不等于零
列不等式计算就行了
arguing
b
~~~