在内、外螺纹连接的剖视图中,其旋合部分应按()画出。
A.外螺纹
B.内螺纹
C.跟螺纹没关系,直接用虚线
D.跟螺纹没关系,直接用点划线
参考答案:A
___, he was a man known to the people all over the town.
A.Tailor as he is
B.A tailor as he is
C.Tailor as is he
D.A tailor as is he
从节能角度出发,室内灯具的效率不宜低于(),在满足眩光限制要求条件下,开启式直接型照明灯具比带漫射透光罩的包含式灯具或装有栅格的灯具效率高()。
A.60%,20%-30%
B.70%,20%-40%
C.80%,20%-40%
D.90%,20%-30%