【判断题】表示燃气中各组分的方法有重量法、容积法、摩尔法和绝对表示法等。工厂煤气一般用摩尔法表示。
【单选题】社会文化群可分为()、宗教、种族和地理等四个亚文化群
【单选题】What did the boy think about the girl?
A.
She never studied hard.
B.
She studied very well.
C.
She couldn't pass the exam.
【判断题】表示燃气中各组分的方法有重量法、容积法、摩尔法和绝对表示法等。工厂煤气一般用摩尔法表示。
【单选题】What did the boy think about the gift?
A.
She never studied hard.
B.
She studied very well.
C.
She couldn't pass the exam.
【简答题】校园文化是社会的一种亚文化,可分为校园的物质文化、组织制度文化、精神文化以及课程活动文化等,其中,学校的——是校园文化的核心。
【简答题】内螺纹要按照剖视来画,剖面符号用__画。盲孔内螺纹的圆锥角要画成__度。