【判断题】The teacher required that all of us should attend the meeting.老师要求我们每个人都参加这次会议.
【单选题】用红外光激发分子使之产生振动能级跃迁时,化学键越强,则______。
【单选题】The teacher together with some students ___ visiting the factory
【单选题】The Egyptians made the first balls with _________ .A. animal skin B. something light
A.
24.The Egyptians made the first balls with _________ . A. animal skin
【单选题】关于青霉素过敏性休克,下列哪种说法不正确
【单选题】The mistakes in the exercises will _______ the teacher. A. cross B. be crossing C. be crossed by D. cross by