【单选题】恩格尔系数是指食品支出总额占个人消费支出总额的比重。根据联合国粮农组织提出的标准,恩格尔系数在( )为富裕。
【单选题】李某,男,32岁。与朋友聚餐后,突发上腹部剧烈疼痛,体检发现腹部膨隆,上腹压痛明显,有反跳痛和腹肌紧张,下列处理不妥的是
【单选题】关于食品毒物中, ADI 是指
E.
亚慢性毒性试验的最大无作用剂量 / 安全系数
【单选题】—What is the man, do you know? -— I don’t know exactly. But I think he can be ______ but a teacher.
【单选题】— Do you know _____? — Sorry, I don't know. [ ]
A.
what's the population of Japan
B.
what the population of France is
C.
how much of the population of Japan I
D.
how many is the population of France
【单选题】在31题中,小齿轮齿顶圆直径d a1 等于______。
【单选题】下列哪个指标是指食品支出总额占个人消费支出总额的比重?