How was your last weekend?
______.It rained all the weekend.I had to stay at home.( )
Pretty good
Terrible
Not bad
Great
已知平面向量,,且,则实数的值等于()
设函数,则满足的的值是()
设,若,若,则的值为()
已知定义在上的奇函数,设其导函数为,当时,恒有,令,则满足的实数x的取值范围是( )
已知函数,则=()