In the standard (x,y) coordinate plane, a line segment has its endpoints at (3,6)and(9,4). What are the coor-dinates of the midpoint of the line segment?
A.(3,-1)
B.(3,1)
C.(6,2)
D.(6,5)
E.(12,10)
第4题
A.Permanent worker contract.
B.Standard temporary-worker contract.
C.Standard industry contract.
为了保护您的账号安全,请在“上学吧”公众号进行验证,点击“官网服务”-“账号验证”后输入验证码“”完成验证,验证成功后方可继续查看答案!