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
---Do you know Mr. Smith?
---Yes. He is the man _______ has short black hair.
A．which
B．why
C．who
D．when
录井过程中的直接显示是判断缝洞油、气、水层的唯一依据。
