Friday, September 16, 2022
Tuesday, September 13, 2022
问题:一般食物的含氮量转换为蛋白质含量的系数为()A、5.85B、6.05C、6.25D、6.45E、6.15...
Wednesday, January 25, 2023
Tuesday, September 13, 2022
问题:描述振动物理性质的最常用基本参量是()。A、频率B、位移C、速度D、时间E、加速度...
Friday, October 13, 2023
Friday, September 16, 2022
问题:食品生产车间人均占地面积,除生产设备而外,应达到()A、3mB、1.5m2C、1/100~1/50D、1.0mE、1.5m...
Saturday, December 10, 2022
问题:当机体感染病原体后,不出现或仅出现不明显的临床表现,但机体可产生...
Monday, September 12, 2022
Friday, September 16, 2022
Friday, September 16, 2022
Friday, September 16, 2022
Tuesday, September 13, 2022
Friday, September 16, 2022
Friday, September 16, 2022
问题:农民肺属于职业性变态反应性肺泡炎,引起农民肺的粉尘是()A、棉、麻等植物性粉尘B、霉变枯草粉尘C、田间飞扬的粉尘D、粮谷粉尘E、飞扬的人畜粪肥粉尘...
Wednesday, April 17, 2024
Monday, September 12, 2022
问题:我国2002年颁布的职业病名单中,物理因素所致职业病有( )...
Friday, September 16, 2022
问题:在生态系统中,生物之间是通过何途径进行物质和能量交换的()...
Tuesday, September 13, 2022
Friday, September 16, 2022