The most common division between primary and secondary education in the US is ___________.（ ） A: primary schools (Grade 1 to Grade 6) and middle schools (Grade 7 to Grade 12) B: elementary schools (Grade Kindergarten to Grade 8) and high schools (Grade 9 to Grade 12) C: elementary schools (Grade Kindergarten to Grade 3), middle schools (Grade 4 to Grade 6) and high schools (Grade 7 to Grade 12) D: grammar schools (Grade Kindergarten to Grade 6) and high schools (Grade 7 to Grade 12)

The relief grade of fluorite is : ( ) A: Negative high relief B: Positive low relief C: Positive median relief D: Twinkling

I have a solid ac_________ background, having completed my courses with a high grade point average that meets your general entrance requirements.

If full credits were given to this part, it could ______ a high grade for the student in his physical course. A: belong to B: be due to C: he subject to D: contribute to

Which grade were they in? A: Grade 8 B: Grade 9 C: Grade 10 D: Grade 11

【单选题】5. 假定student表中有字段grade,grade代表分数,依次统计grade字段的最大值,最小值,平均值的SQL语句是 A. SELECT max(grade),min(grade),average(grade) FROM student; B. SELECT max(grade),min(grade),avg(grade) FROM student; C. SELECT min(grade),average(grade),max(grade) FROM student; D. SELECT min(grade),avg(grade),max(grade) FROM student;

What grade is the woman in A: Grade one. B: Grade two. C: Grade three.

They are the students of ______. A: grade 7 B: Grade 7 C: 7th grade D: Grade 7th

青书学堂: (问答题) 翻译George so often told stories there were untrue that no one believed him when he told about the high grade he got in the exam. (本题3.0分)

The electric furnace is used extensively to produce the high-grade steel _____ for the manufacture of steel alloys. A: to be required B: requiring C: required D: that required