食品安全仅指消费阶段食品中食源性危害对消费者不会造成伤害。
参考答案：错
---- Your brother is good at running. How fast he runs in the sports meeting last week!
---- But he didn’t run _____ Sam.
A．so fast as
B．as faster as
C．as more quickly so
D．so slower as
《桑干河上》与《暴风骤雨》比较。
