【简答题】A.They take s seriously. B.They think s are secondary. C.They think s are the most important. D.Lessons and s are equally important.
【简答题】A.They take s seriously. B.They think s are secondary. C.They think s are the most important. D.Lessons and s arc equally important.
【单选题】以下经胎盘传播 , 造成宫内感染的寄生虫 是
【单选题】直线x-3y=0与二次曲线 的交点个数是( )个
【单选题】下列关于一体化战略的说法中,不正确的是( )。
A.
从理论上分析,企业采用纵向一体化战略有利于节约与上、下游企业在市场上进行购买或销售的交易成本,控制稀缺资源,保证关键投入的质量或者获得新客户
B.
企业采用纵向一体化战略的主要风险之一是:不熟悉新业务领域所带来的风险
C.
企业采用横向一体化战略的主要目的是为了减少竞争压力、实现规模经济和增强自身实力以获取竞争优势
D.
当供应商数量较少而需求方竞争者众多时企业适合采用前向一体化战略
【单选题】Some people in the metal industry think the new trend will ______.
A.
seriously change the way they do business
B.
seriously damage the way they do business
C.
not seriously change the way they do business
D.
not seriously damage the way they do business
【简答题】直线y=-x+m与双曲线 y= n x 交于第四象限一点P(a,b),且a,b是一元二次方程x 2 -2x-3=0的两根. (1)求一次函数、反比例函数的解析式; (2)直线与双曲线的另一个交点为Q,求△POQ的面积(O为直角坐标系的原点).
【单选题】下列全身麻醉药物中,属于静脉麻醉药的是()。