下列各句中，加线的成语使用恰当的一项是（     ）

下列对化学知识的理解正确的是（　　）

下列不等式中，与不等式$\frac{x-3}{2-x}$≥0同解的是（　　）

⑴Do you want some rice?____             A. Thanks.

⑵What do you want to drink?____       B. Yes, I do.

⑶Can I help you?  ____                         C. I want some bread.

⑷Here you are.____                               D. Water, please.

⑸Do you want coffee or tea?____         E. I want some tea, please.