— is it from your home to the cinema, Mike?— It is only about ten minutes' walk.
A:How far
B:How long
C:How soon
D:ow often
已知A,B,C三点不共线,O为平面ABC外一点,若由向量OP→=14OA→+23OB→+λOC→确定的点P与A,B,C共面,那么λ=____
0.5m/s2
下列说法错误的是( ).
某超市对今年前两个季度每月销售总量进行统计,为了更清楚地看出销售总量的总趋势是上升还是下降,应选用____ 统计图来描述数据.