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【简答题】
(1)求 2 2 , (-3 ) 2 , 5 2 , (-6 ) 2 , 7 2 , 0 2 的值,对于任意实数a, a 2 等于多少? (2)求( 4 ) 2 ,( 9 ) 2 ,( 25 ) 2 ,( 36 ) 2 ,( 49 ) 2 ,( 0 ) 2 的值,对于任意非负实数a, ( a ) 2 等于什么? (3)比较(1)(2)的结果,把你的发现用式子表示出来. (4)根据上面发现的规律,求(3-π) 2 的算术平方根.
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举一反三
【多选题】证券投资基金的特点有
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集合投资
B.
分散风险
C.
专业理财
D.
收益固定
【单选题】In the following description of a static data member, the correct answer is ()
A.
static data members can be initialized in the body of the class
B.
Static data members can be called directly with class or object names
C.
static data members cannot be decorated with private controllers
D.
Static data members cannot be called by class objects
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The former is set up by cargo and sea while the latter by wave action.
B.
The former is acting during loading and from wave action while the latter before and after the ship has been loade
C.
The former is set up by cargo while the latter by wave action.
D.
I don,t know
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正确
B.
错误
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移动肛管
B.
停止灌肠
C.
挤捏肛管
D.
提高灌肠筒高度
E.
嘱患者张口呼吸
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A.
不可能并行
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可以并行执行
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必须并行执行
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任何情况均可交换串行
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A.
可以并行执行
B.
不可能并行
C.
任何情况均可交换串行
D.
必须并行执行
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IMAP
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DNS
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【单选题】患者男性,48岁。因“结肠癌”遵医嘱做术前准备,灌肠过程中出现速脉、面色苍白、出冷汗,心慌气促,正确的处理措施是
A.
移动肛管
B.
停止灌肠
C.
挤捏肛管
D.
提高灌肠筒高度
E.
嘱患者张口呼吸
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