在设备、管道经常拆卸部位的绝热结构应做成的斜坡的角度是()。
A.50°
B.55°
C.45°
D.40°
参考答案:C
办公室里的座次怎样安排才算礼貌?()
A、长沙发优于单人沙发
B、沙发优于普通椅子
C、面门为上
D、背墙为安
Gary has planned to take a tour around the Great Lakes in the coming summer vacation and() great pleasure from the visit.
A.acquires
B.anticipates
C.recalls
D.reckons