一个直角三角形的三边为三个连续整数,则它的三边长分别为( )。
3,4,5
The wine industry in the area has developed in a special way, _____ little foreign ownership.[ ]
A. by
B. of
C. with
D. from
一般来说,普通火花塞中心电极与侧电极之间的间隙为()。
A.0.35~0.45
B.0.45~0.55
C.0.5~0.6
D.0.7~0.9