高铁酸钠(Na2FeO4)是一种“绿色环保高效”消毒剂。高铁酸钠中铁元素的化合价为
你想表达自己喜欢热狗,你应说:________ A.I like hot dogs. B.I like dogs.
你想询问自己的座位在哪里,你应说:________ A.Where's your seat? B.Where's my seat?
你想介绍你的新朋友张鹏,你应说:________ A.That's Zhang Peng. B.This is Zhang Peng.
你想询问教室里有什么,你应说:________ A.What's in the classroom? B.Where's the classroom?
The sharpener is near the fish________. A.bowlB.glassC.cup