【单选题】从“学生”表中查找姓名的第二个字是“锡”的学生信息的条件是_____。
【单选题】The author's attitude towards intelligent seem to be that______.
【单选题】外国人在民事方面享有与居留国公民大致相同的权利和义务,这就是
【判断题】择期交割的选择权在询价方,报价方为了补偿价格变动风险,会报出对自己有利的价格。
【单选题】.— My daughter has passed the exam. — Congratulations! She’s really intelligent. — __________________
A.
No, no, she is nothing.
C.
Sometimes she is intelligent.
【简答题】函数f(x)=ax 3 +bx(a≠0)图象在点(1,f(1))处的切线与直线6x+y+7=0平行,导函数f′(x)的最小值为-12. (1)求a、b的值; (2)讨论方程f(x)=m解的情况(相同根算一根).