His “Selected Poems” _____first published in 1965.
A.were
B.was
C.has been
D.are
答案:B
包装岗突然停电时如何处理?
项目经理必须依赖什么工具,以便准确识别与项目相关联的成本?()
A.材料单
B.甘特图
C.箭线网络图
D.工作分解结构