【简答题】若三条直线2x+3y+8=0,x-y-1=0和x+ky=0相交于一点,求k的值。
【简答题】How many methods are used to transport drugs? A) As many as a smuggler can think of. B) Beyond the smuggler's imagination. C) Only a limited number. D) Only a few.
【单选题】DIN VDE 0100 标准包含了以下哪项规定?(DIN:德国标准化协会 VDE:德国电气工程师协会)
D.
额定电压低于1000 V的低压电气装置的安装规定
E.
额定电压高于1000 V的低压电气装置的安装规定
【简答题】什么是传染病,传染病的预防原则有哪些 ?
【简答题】若三条直线 2 x + 3 y + 8 = 0 , x - y - 1 = 0 和 x + ky = 0 相交于一点,则实数 k 的值等于 ________
【简答题】阅读材料回答问题 资料一:肝炎患者用的碗筷要和家人分开,否则容易使家人染上肝炎.饭馆的餐具要严格消毒,否则容易使顾客染上肝炎、流感、细菌性痢疾等传染病. 资料二:经国务院批准,从2007年起,扩大国家免疫规划疫苗范围,在现行国家免疫规划基础上,将甲肝疫苗、流脑疫苗等纳入国家免疫规划,对适龄儿童实行预防接种;并根据传染病流行趋势,在流行地区对重点人群进行预防接种. (1)肝炎患者是______,将餐...
【单选题】According to the passage ,how many methods are used to transport drugs? 查看材料
A.
As many as a smuggler can think of.
B.
Above the smuggler's imagination.
D.
Only a limited number.
【单选题】How many methods are used to transport drugs?
A.
As many as a smuggler can think of.
B.
Beyond the smuggler's imagination.
C.
Only a limited number.