题干
The basketball game was invented by a Canadian doctor James Naismith.
A：was called
B：to call
C：named
D：calling
答案(点此获取答案解析）
C
The basketball game was invented by a Canadian doctor James Naismith.
A：was called
B：to call
C：named
D：calling
函数f(x)=2sin(
x+
)(其中
)的相邻两条对称轴之间的距离为
,则( )
