【多选题】食物中的危害来源和控制,说法正确的是:
C.
可采用冷冻、高温、发酵、控制水分活度等方法控制细菌性危害
D.
来源控制、生产控制和标识控制是控制化学性危害的有效手段
【简答题】She told me the newspaper reporter triumphantly that the life of the villagers has improved ____ in the past five years.
【简答题】实物清查的常用方法有()。 A实地盘点法 B技术推算法 C账目核对法 D逆查法
【单选题】听力原文: The chief economist of the International Energy Agency has told a U.S. newspaper that China will overtake the United States this year as the world's biggest source of greenhouse gases. Earlier, ...
【单选题】下列关于透视的叙述,哪项是错误的?
D.
透视时应按一定顺序,照射野大小适当,受检部位贴 近荧光屏或影像增强器
【判断题】( )两片式斜裙左、右侧缝的丝绺为一边直丝、一边横丝。