为了探究压强大小跟哪些因素有关,老师准备了如图所示的器材:①用钉子做腿的小桌、②海绵、③砝码、④木板、⑤盛有适量水的矿泉水瓶⑥装有沙的容器等供同学们选择,同学们所选的四组器材中,不能达到探究目的是 ( )
A:①③⑥
B:①②⑤
C:③④⑤
D:②③④
— Have you seen the film _____ Lost In Thailand (泰囧)?— Yes. It's great fun. I couldn't stop _____while I was watching it.
下列词语中没有错别字的一组是( )
看图说韵母和所对声调。
____ ____ ____