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问题 单项选择题

敌百虫中毒患者忌用的洗胃液是（）

A.清水

B.生理盐水

C.1：15000高锰酸钾

D.2%碳酸氢钠

E.1：20000高锰酸钾

答案

参考答案：D

解析：敌百虫遇碱性溶液会氧化成毒性更强的敌敌畏，因此，敌百虫中毒时忌用碳酸氢钠溶液洗胃。

单项选择题

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 （66） to improve their efficienty and reduce （67） . 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 （68）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（69）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 pav for themselves simolv by minimizinu time-consunlina（70）and administrative chores.

A．chores

B．chains

C．changes

D．links
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单项选择题

若语句“t=fun(fun(x,y,a),(a+b,a+c),x+y+z);”对fun函数的调用正确，则fun函数的形参个数为( )。

A) 3
B) 4
C) 5
D) 6
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