A.4/5
B.2/3
C.3/2
D.5/4
第3题
A.(x-1)-3(y-2)+(z+3)=0
B.(x+1)+3(y-2)+(z-3)=0
C.(x-1)-3(y-2)+(z-3)=0
D.(x-1)+3(y-2)+(z-3)=0
第5题
A.(x-1)/1=(y-1)/1=(z-1)/-1
B.(x-1)/1=(y-1)/1=(z-1)/-2
C.(x-1)/1=(y-1)/-1=(z-1)/-2
D.x+y-z=1
第6题
A.(x+1,y+1),(x+1, y-1),(x-1,y+1),(x,y-1)
B.(x,y+1),(x, y-1),(x-1,y),(x-1,y)
C.(x,y),(x+1, y-1),(x-1,y+1),(x-1,y-1)
D.(x+1,y+1),(x+1, y-1),(x-1,y+1),(x-1,y-1)
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!