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提问人:网友c********1 发布时间:2022年5月2日 00:37
[多选题]

默认情况下,使用FileOutputStream写数据时,下列说法中哪些是错误的()

A . 当文件不存在时,会自动创建文件B . 当文件不存在时,程序会报错。C . 当文件存在时,会覆盖原文件。D . 当文件存在时,会在原文件上追加数据。

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应急预案按险情等级和影响程度分为以下()种类型
A、A类
B、B类
C、C类
D、A、B、C类
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某旅游团旅游者突然中风,导游应该______。
A.立即用冰袋冷敷其头部
B.给患者进食,保持体力
C.若患者意识丧失,可将患者摆放成侧卧位
D.将患者扶到座位上休息
E.尽快将患者送往医院救治
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如图所示,液压缸的无杆腔面积A=50cm 2,负载F L=10kN,方向始终向左,各阀的调定压力如图。确定 (1)活塞运动时A、B点压力; (2)活塞到终点停止时A、B点压力。(注:需有文字说明)
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6m的混凝土板底模拆除时,混凝土的强度达到设计的混凝土立方体抗压强度标准值的( )才能保证其表面及棱角不受损伤。
A.50%
B.30%
C.75%
D.100%
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在邻近胀缝或路面自由端的三条缩缝采取假缝加传力杆方式。
A.对 B.错
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Sometimes your expectations don't survive.But you have to make it through.

After a lengthy visa application procedure,I left my father with our dog,jumped on a flight,and there I was in London.Since Europe is an aspiration in my country,I had imagined it as a place where things always worked perfectly.I was alone in dealing with all kinds of problems as they arose,that was alright and this is how I became my own “special person” during my Erasmus exchange.

The accommodation I could afford was far from the city.To make things worse,I was new to many things,and definitely an outsider.But it wasn't an exception to carelessness,I found out.My dorm was in a silent neighborhood. Little did I know that those calm streets would he visited by loud fire trucks...And because of me!

That morning,I closed the kitchen door after placing some bread in the toaster.I was still half asleep and looking for what to wear.For some reason,the automatic mechanism of the toaster to push the slices up didn't work. When I went back to the kitchen,it was full of thick white smoke.Coughing hard,I opened the windows,stepped outside the door for a breath,and then went in again to reach for the fire extinguisher(灭火器).It was the first time I used one,and had to get out of the kitchen to be able to see how to unlock it.It was only then the fire alarm went off!I went in again and made sure I put off the fire.

Nothing was like how I planned.A few times I hung out in the school cafeteria,but couldn't make friends.I went to discover the city,alone.Independence wasn’t something to be ashamed of after all.I wish I had made friends with people,but it turned out that I had to learn I wasn't in need of others' company to enjoy life.I tried to make the best of my time,thinking that being alone is a blessing too,just like being with friends is.My international experiences that followed definitely made me more social,but now I know that being alone is not a weakness,but a part of life to embrace.Just like our mistakes,carelessness or bad luck,I can say it was during my time in London that I learnt I was,despite everything,a strong and special person who can cope with(处理)anything that comes her way.


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临床护士在患者入院后当班完成皮肤评估,不得超过()小时,评估后填写相关信息。
A.6
B.12
C.24
D.8
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一电压串联负反馈放大器,其基本放大器的电压增益A u=100,反馈网络的反馈系数B u=0.1。由于温度变化,A u增大到120,试求负反馈放大电路的电压增益变化率 。
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独立悬架的每侧车轮可独立上下运动。
A . 正确
B . 错误
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可以使用( )命令,将已打开的多个文档窗口全部显示在屏幕上。
A.窗口——全部重排
B.格式——全部重排
C.视图——全部重排
D.工具——全部重排
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与前伸平衡无关的因素是

A.髁导斜度
B.切导斜度
C.牙尖斜度
D.横曲线曲度
E.补偿曲线曲度
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()是指聘请专业开发公司的技术人员开发系统,但在开发过程中本企业的信息技术人员也参与其中。
A.购买软件包B.自主开发方式C.委托开发方式D.联合开发方式
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固定绩效考核部分是车辆绩效考核的重点,它能反映该车辆当月整体运行情况。物流企业在设计固定绩效考核指标时,以下属于应考虑方面的有(  )。
A.车辆事故考核、车辆违章考核 B.消耗油耗指标考核 C.车辆维修考核 D.利用率考核 E.货损货差率考核
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每一个EAN-13条码字符由( )构成条码字符集。 (5.0分)
A. 2个条和3个空 B. 3个条和2个空 C. 3个条和3个空 D. 2个条和2个空
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手术后腹气胀和尿潴留应选用哪种药物进行治疗()。
A毒扁豆碱B新斯的明C乙酰胆碱D阿托品

B新斯的明C乙酰胆碱D阿托品

C乙酰胆碱D阿托品

D阿托品
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