制造误差不直接影响加工精度的刀具是()。
A.外圆车刀
B.成型车刀
C.钻头
D.拉刀
参考答案:A
关节病型银屑病()
A.有关节痛
B.关节畸形
C.X线可见软骨消失,关节边缘被侵犯
D.可有关节功能受限
The usual address for a Web site is the()page address, although you can enter the address of any page and have that page sent to you.
A.home
B.main
C.host
D.house