圆筒形压力容器的基本构造为筒体封头、接管、人手孔、支座。（）
A.对
B.错
参考答案：A
The project budget has been finalizeD. Additional work has been discovered that was not planned for in the budget or project scope.（）could provide the fund to cover the newly discovered work item.
A.Contingency reserve
B.Project profit
C.Management reserve
D.Special fund
日本曾在什么时间遭到核武器袭击（）
A.1945年7月
B.1944年11月
C.1945年8月
