--I came ___ two idioms which puzzled me on the cover of an old book which I was looking for a new material in yesterday. ---Why not go to the teacher for ___ about them? A. with, an advice B. t
下列物质肯定为纯净物的是（ ） A、汽油 B、C2H6O C、聚乙烯 D、葡萄糖
Last weekend, my kids along with a few other kids from the neighborhood volunteered to help me wash my car．My 10-year-old daughter came up with the idea of 31 other people’s cars as well．
改革开放三十余年来，我国选举制度不断完善，始终不渝坚持一个鲜明的价值主题：保障与扩大选民权利，推进选举的民主化。在这一价值理念的导向
某学生测定下列数据合理的是（ ） A．用100ml量筒量取7.5ml水 B．用pH试纸测得某地水的PH为5.52 C．用托盘天平称得某食盐样品的
19世纪中叶，达尔文建立了以自然选择为基础的严密的生物进化理论，第一次对整个生物 界的发生、发展做出了唯物的、规律性的解释；近代中国知识
He was crazy ____ his study when he was young, which contributes ____ his success. in later life. A. for; to B. about; to C. about; on D. for; on
The new school term is coming. Now the school clerks are planning a new timetable for Class 5，Grade 7. There are six classes every day，four in the morning and two in the afternoon. The students
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