【单选题】Task1Completeeachstatementbychoosingtheappropriateanswerfromthe fourchoicesmarkedA,B, CandD.She is newcomer to chemistry but she has already made some important discoveries.
【简答题】Usually, students are not encouraged to run or jump around in the corridor (走廊). However,students in a British grammar school really enjoy running on the corridor tiles (瓷砖) and their teachers even en...