绿色食品产品标准中的安全卫生指标主要包括（）。
A.重金属指标
B.农药残留、兽药残留
C.食品添加剂限量
D.微生物指标
参考答案：A, B, C, D
To my surprise,no attention was paid______the text in my class.
A．to read
B．in reading
C．reading
D．to reading
7. Classic music is popular____those who have a good knowledge of music.
A．to
B．for
C．with
D．On
