( )是确定项目总体风险的级别和风险顺序；为下一步的分析和控制提供依据；预测未来的

75-78．据说篮球运动刚诞生的时候，篮板上钉的是有底儿的篮筐。每当球投进的时候，就有一个人踩在梯子上专门负责把球拿出来。为此，比赛不得不断断续续地进行，缺少了激烈紧张的气氛。为了让比赛更顺畅地进行，人们想了很多取球方法，但都不太理想。有一位发明家甚至制造了一种机器，只要机器在篮筐下面一拉就能把球弹出来，不过这种方法还是没能让篮球比赛紧张激烈起来。有一天，一位父亲带着儿子去看球赛。小男孩儿看到大人们一次次不辞劳苦地取球，大惑不解：为什么不把篮筐的底儿去掉呢？人们这才如梦初醒，于是就有了今天我们看到的篮网样式。去掉篮筐的底儿，就这么简单，但那么多有识之士都没有想到，这个简单的“难题”就这样困扰了人们很多年。可见，无形的思维定式就像那个结实的篮筐，禁锢着我们的头脑，而我们的思维也像篮球一样被“囚禁”在了篮筐里。

第 2 段中，画线词语“如梦初醒”是什么意思？

A．梦想刚刚实现

B．像做梦一样不真实

C．受到启发而突然明白

D．做梦时忽然被人叫醒

采用平行结转分步法时，完工产品与在产品之间的费用分配是（）。

A．各生产步骤完工半成品与月末加工在产品之间费用的分配

B．产成品与月末狭义在产品之间的费用分配

C．产成品与月末广义在产品之间的费用分配

D．产成品与月末加工在产品之间的费用分配

如流体中含有颗粒，将可能造成（）中的可动元件损坏。

A.速度式流量计

B.差压式流量计

C.罗茨流量计

D.超声波流量计

WLANs are increasingly popular because they enable cost-effective connections among people, applications and data that were not possible, or not cost-effective, in the past. For example, WLAN-based applications can enable fine-grained management of supply and distribution (51) to improve their efficienty and reduce (52) . WLANs can also enable entirely new business processes. To cite but one example, hospitals are using WLAN-enabled point-of-care applications to reduce errors and improve overall (53) care. WLAN management solutions provide a variety of other benefits that can be substantial but difficult to measure. For example, they can protect corporate data by preventing (54) through rogue access points. They help control salary costs, by allowing IT staffs to manage larger networks without adding staff. And they can improve overall network mananement by integrating with customers’ existing systems, such as OpenView and UniCenter. Fortunately, it isn’t necessary to measure these benefits to justify investing in WLAN management solutions, which can quickly pay for themselves simply by minimizing time-consuming (55) and administrative chores.

A. finance B. patientC. affair D. doctor

流动周转率是指企业在一定时期内( )与全部流动资产平均余额之间的比率。

A．利润总额

B．净利润

C．主营业务收入净额

D．主营业务成本