施工现场质量的检查,应该严格执行三检制度,所谓的三检指的是( )。
A.自检、互检、他检 B.自检、互检、交接检C.自检、互检、领导抽检 D.自检、互检、专检
参考答案:D
There were many people present and he appeared only for a few seconds, so I only caught a ______of him.
A.glance
B.glimpse
C.look
D.sight
程序流程图(PFD)中的箭头代表的是( )。
A) 数据流 B) 控制流 C) 调用关系 D) 组成关系