It isn't ______ car. It's ______ car. [ ]
A. my, my
B. your, my
C. you, I
D. she, his
答案:B
若直线y=ax+b不经过二、四象限,则抛物线y=ax2+bx+c( )
A.开口向上,对称轴是y轴
B.开口向下,对称轴是y轴
C.开口向下,对称轴平行于y轴
D.开口向上,对称轴平行于y轴
企业尽可能利用更多的经销商销售产品的渠道策略称为()分销策略。
A、密集
B、独家
C、选择
D、推广