【单选题】These boxes are too drity. Please ______. [ ]
【单选题】根据《中华人民共和国宪法》规定,公民的某些权利和义务是结合在一起的。下列选项中,既是公民权利又是公民义务的是()。
【单选题】在成绩表(课程编号,学号,平时成绩,考试成绩)中,( )可以被设置为该表的主关键字。
【简答题】单词拼写。 1. I can write well, so my ______(书法)is beautiful. 2. I have a dream to be a teacher. I must work hard to ______(达到) it. 3. Rosa is a ______(聪明的)child. She could do well at school. 4. The countr...