计算机语言处理程序的种类?
参考答案:
(1)汇编程序;
(2)解释程序;
(3)编译程序。
No one can understand the picture _________ by the little artist. [ ]
A. was drawn
B. has drawn
C. drawn
D. is drawn
离心泵的密封填料应切成小段,其长度与盘绕泵轴一周的长度相等,切口要成()角搭接。
A.45。
B.55。
C.35。
D.25。