某集合A={x|1<x<2}B={x|x<a}满足A真包含于B则实数a的取值范围是.A.{a丨a>=2}.B.{a丨a<=1}.C.{a丨a>=1}.D.{a丨a<=2} .

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某集合A={x|1<x<2}B={x|x<a}满足A真包含于B则实数a的取值范围是.A.{a丨a>=2}.B.{a丨a<=1}.C.{a丨a>=1}.D.{a丨a<=2}.某集合A={x|1<x<2}

某集合A={x|1<x<2}B={x|x<a}满足A真包含于B则实数a的取值范围是.A.{a丨a>=2}.B.{a丨a<=1}.C.{a丨a>=1}.D.{a丨a<=2} .
某集合A={x|1<x<2}B={x|x<a}满足A真包含于B则实数a的取值范围是.
A.{a丨a>=2}.B.{a丨a<=1}.C.{a丨a>=1}.D.{a丨a<=2} .

某集合A={x|1<x<2}B={x|x<a}满足A真包含于B则实数a的取值范围是.A.{a丨a>=2}.B.{a丨a<=1}.C.{a丨a>=1}.D.{a丨a<=2} .
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