影响现金流量的因素主要有（） ["不同投资项目之间存在的差异","不同出发点的差异","不同时期的差异","相关因素的不确定性"]
位错的运动包括位错的滑移和位错的攀移，其中（）。 ["螺位错只作滑移，刃位错既可滑移又可攀移","刃位错只作滑移，螺位错只作攀移","螺位错只作攀移，刃位错既可滑移又可滑移","螺位错只作滑移，刃位错只作攀移"]
下列中，（）不属于金融制度。 ["机构部门分类","汇率制度","支付清算制度","金融监管制度"]
美国宪法第27修正案明订，任何改变国会议员薪水的法律都必须在下届议员选举后才能生效。下列对“议员薪水”的解读正确的是（）。 ["打破了资产阶级对权力的垄断","扩大了公民范围","体现美国依法治国","有利于提高他们的参政水平和热情"]
What are three characteristics of the OSPF routing protocol?（） [" It converges quickly."," OSPF is a classful routing protocol."," It uses cost to determine the best route."," It uses the DUAL algorithm to determine the best route."," OSPF routers send the complete routing table to all directly attached routers."," OSPF routers discover neighbors before exchanging routing information."]
细胞质遗传的物质基础是什么？
