A:烷烃就是饱和烃
B:乙烷分子中的两个C原子共线,而C,H八个原子共面
C:C3H8分子中的三个碳原子可能共线,但所有的原子不可能共面
D:C20H42一定属于烷烃
学校联手社区(村)开展“传统文化进社区(村)”的综合性学习活动,请你结合相关材料,完成下列任务。
STUDY ENGLISH IN AMERICA
Country
Tina comes from ____.
Weekend Activity
Tina visits____ on Sundays.
Location
Tina's host family is in a ____ area.
TV Program
Tina always watches ____ in the evening.
Study Time
Stay for ____ and study English as Tina does!