High school students who are not active in sports or _______ diet is high in fat and sugar will put on

weight quickly.[ ]

A. what

B. that

C. which

D. whose

瑞氏染料是一种复合染料，组成是（　　）

A．酸性伊红和碱性亚甲蓝

B．碱性品红和碱性亚甲蓝

C．甲基红和亚甲蓝

D．伊红和糊精

E．伊红和酸性亚甲蓝