选出相对应的答语。

①I can hear the car. ____         A. Yes, I do.

②What is it? ____                     B. It's brown.

③Can you hear a cat? ____       C. Yes, I can.

④What colour is the dog? ____ D. Great.

⑤Do you like the train? ____      E. Yes. It's hard.

⑥Is the watch hard? ____           F. It's a bike.

我是拼音小能手

____  ____   ____    ____

石榴          枣庄           咧开          甜津津

某食用油生产厂要制造一种容积为5升（1升=1立方分米）的圆柱形油桶，油桶的底面面积s与桶高h的函数关系式为____ ．