给下列问答句配对。
① Do you like rice? ____ A. I hear a dog. Woof, woof.
② Drink some water, Mum. ____ B. Thank you.
③ What do you hear? ____ C. No, I like noodles.
④ Smell the orange.____ D. I like noodles.
⑤ What do you like?____ E. It's nice.
用如图所示的滑轮机组将重为600N的物体在10s内匀速提升了3m,已知拉力F为250N,不计绳重和摩擦,下列有关计算正确的是( )
下列语句中节奏划分不正确的一项是( )
地球上的生命是自然界长期发展的产物,其历史已有几百万年。( )