先解释画线的词，再理解诗句的意思。  

1．绿遍山原白满川，子规声里雨如烟。

川：                        

句意：                                                                                                                                            

2．童孙未解供耕织，也傍桑阴学种瓜。

供：____                 傍：                    

句意：                                                                                                                                              

3．青箬笠，绿蓑衣，斜风细雨不须归。

归：                    

句意：                                                                                                                                            

苯巴比妥（）

A.高氯酸滴定液

B.亚硝酸钠滴定液

C.氢氧化钠滴定液

D.硫酸铈滴定液

E.硝酸银滴定液