矿难发生后,长时间处于黑暗中的矿工被救上井时,都用毛巾蒙上眼睛,以保护视网膜免受光的伤害。眼球的结构中,控制进人眼球光线多少的结构是
____shoes are they ? They are my brother’s . A.Whose B.What C.Where
I want a pair___sneakers___my mother . A.\ for B.of for C.for of
What are your parents ? They are____. A.farmer B.teacher C.doctors
It’s snowy in Harbin .It is very______too . A.coldB.rainyC.hot
Can I wear my shirt ? Yes , you _______. A.canB.areC.can’t