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问题 单项选择题

在套利操作中，套利者通过即期外汇交易买入高利率货币，同时做一笔远期外汇交易，卖出与短期投资期限相吻合的该货币。这种用来防范汇率风险的交易是（）。

A、远期外汇交易 

B、货币期货交易 

C、货币期权交易 

D、掉期交易

答案

参考答案：D

单项选择题 A1型题

下列哪项措施不属于节育措施（）

A.宫内放置节育器

B.口服探亲药

C.人工流产

D.皮下埋植药物

E.输卵管结扎
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单项选择题

WLANs are increasingly popular because they enable cost-effective connections amongpeople, 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 ___24___ to improve their efficiency and reduce ___25___. 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 ___26___ 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 ___27___ 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 management by integrating with customers’ existing systems, such as OpenView. 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 ___28___ and administrative chores.

24（）

A.chores 

B.chains 

C.changes 

D.links
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