某同学沿周长为400m的环形跑道跑了一圈又回到出发点,他的路程和位移的大小分别是( )
A:400m,400m
B:400m,0
C:0,400m
D:0,0
意志坚强的人有明确的目的,因此在困难面前毫不退缩和逃避。( )
2013年4月,吴某在微博上散布H7N9禽流感在宁波某地爆发的谣言。当地警方根据治安管理处罚法,对他作出拘留五日的处罚。这是因为吴某的行为属于 ( )
A. Great!
B. It's near the post office.
C. I go by ship.
D. She goes home by taxi.
E. Yes, you can.
根据句意及首字母或汉语提示,完成下列单词。 (1)The e____ is the biggest animal on land.(2)The old man p____ trees in spring every year.(3)My hobby is c____ stamps(邮票).(4)It's d____ to play football in the street.(5)Will you i____your teachers to your birthday party?
下列关于分类单位等级的叙述,正确的是( )