下列科技成就在唐朝末年出现的是( )
①火药应用于军事 ②赵州桥的建造 ③雕版印刷业比较发达 ④开凿大运河
A:①②③④
B:①③④
C:①③
D:②③
正常人平时步行的速度大约是( )
根据课文内容填空:
①____,浅草才能没马蹄。(白居易《钱塘湖春行》)
②____,江春入旧年。(王湾《次北固山下》)
③夕阳西下,____。(马致远《天净沙》)
④____,____。烈士暮年,壮心不已。(曹操《龟虽寿》)
⑤____,夜泊秦淮近酒家。(杜牧《泊秦淮》)
⑥何当共剪西窗烛,____。(李商隐《夜雨寄北》)
⑦____,把酒话桑麻。(孟浩然《过故人庄》
A:Good morning.
B:____
A:I am Li Fei.____
B:My name is Wang Qiang.
A:____
B:Yes,I am.
A:I am twelve.____
B:I am twelve too.
B:OK! Let's go.
A.Good idea!
B.How are you?
C.Good morning.
D.What about you?
E.What's your name?
F.Are you from Beijing?
G.Let's go and play football.