建设项目可以按( )划分类别。
A.建设性质
B.投资作用
C.项目规模
D.投资决策
E.投资效益
参考答案:A,B,C,D
The theory by Einstein was later to prove true, but at that time few people could accept it.
A.put out
B.put together
C.put aside
D.put forward
诊断左心功能不全最有价值的检查是()
A.超声心动图
B.心电图运动负荷试验
C.巴冠状动脉造影
D.漂浮导管检查