预防饮水型砷中毒最有效的措施是（）。

A.寻找低砷水源

B.理化方法除去水中砷

C.停用高砷煤

D.改变饮食习惯

E.改变不良的生活方式

A foreign visitor is coming to visit our new house this evening. My mother will offer him _______ to eat. 

A．anything delicious

B．something real Chinese

C．something Japanese food

D．delicious something