—Mr. Smith, would you please speak a little more ________?—Sorry! I thought you could follow me.
A:quietly
B: slowly
C:quickly
D:politely
查划线的字
应查部首
再查几画
选择恰当的解释
问其故
____
____①意外的事;②故意;③旧友;④原因
卓有成效
____①效果;②仿效;③为别人或集团献出(力量或生命)
闻所未闻
____①听到;②听见的事情;③有名望的;④嗅
从下列四张学习卡片上,你可以提炼的学习主题是( )
如图的图象表示斑马和长颈鹿的奔跑情况.