零件上,线辐射状均布的筋和轮辐不论对称与否,在剖视图中按()画出。
A.对称形式
B.不对称形式
C.随意
参考答案:A
Three hours _____ enough for us to finish the task. [ ]
a. are
b. has
c. is
d. were
办理X至ⅢG接车进路,遇到下列情况应采取什么方式接车?