Hello,friends! My name is Jack.I am a Chinese boy.My favourite food is chicken.I like beef noodles,too.I don't like fish but egg is OK.Potatoes are my favourite vegetable.My favourite fruit is bananas.They are so sweet.
在我国56个民族中,形成于元朝、信仰伊斯兰教的民族是( )
集合M={x|(x﹣1)(x﹣2)<0},N={x|x<a},若M⊆N,则实数a的取值范围是( )