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【简答题】
It is well-known that everyone has his own dream as well as his own future. But do you know what future really is? I have to say that future is now. That is to say, we must treasure every minute now. If we want to have a bright future, we should know how important time is and use it well. There is an old English saying: “Gain time, gain life.” Then what’s time? Time is something that we can’t see or touch, but we can feel it passing by. Time is always with us. When we are at table, time passes; when we play, time goes by unnoticeable. We always say “Time is money,” but time is even more precious than money, because when money is spent, we can earn it back. But if time is gone, it well never return. So some of us even say time is priceless. We should always remember: Future is now. For us students, we should try our best to work hard in order to create a great future of our own. We should make the best use of every hour and be the master of today. We should do everything before us as well as possible. And never put off what can be done today till tomorrow. As we all know, “Time and tide wait for no man.” If you waste today, you will regret tomorrow. So from now on, work hard. Tomorrow will be better, and your future will be brighter. Remember: “No pains, no gains.” Today’s hard work is the cause of tomorrow’s harvest. 根据文章内容,补全下面句子,每空一词。 小题1:If we want to have a bright future, we should know the _____ of time and make every minute useful. 小题2:Time is money, but time is even more ______ than money. 小题3:When money is _____, we can earn it back. 小题4:Time is priceless. _____ time will return no more. 小题5:As students, we should never put off what can be done today till tomorrow and we should try our _____ to do everything well.
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参考答案:
举一反三
【判断题】在app.js中定义的全局变量在页面局部js脚本中不能使用
A.
正确
B.
错误
【简答题】js中用( )定义变量
【单选题】在JS中,要定义一个全局变量x,可以( )。
A.
使用关键字public在函数中定义
B.
使用关键字public在任何函数外定义
C.
使用var在函数中定义
D.
使用var在任何函数之外定义
【简答题】在app.js中定义的全局变量name,在其内的回调函数中应使用 .name调用该变量
【单选题】在二次回路中查找故障工作时,必须遵守《电业安全工作规程》和现场规程中有关规定,同时应注意些问题,不应该做的是( )。
A.
在电压互感器二次回路上查找故障时,必须考虑对继电保护及自动装置的 影响,防止因失去交流电压而使保护误动作
B.
拔直流电源熔断器时,应同时拔掉正负极熔断器,以利于分析查找故障
C.
防止电流互感器二次开路和电压互感器二次短路及接地
D.
使用灯泡查找故障
【判断题】在四显示自动闭塞区段通过色灯信号机显示一个绿色灯光表示准许列车按规定速度运行,表示运行前方至少有两个闭塞分区空闲。
A.
正确
B.
错误
【简答题】作业 2.16 ( 3 )、( 7 ), 2.17 ( 3 )、 2.20 ( 3 )、 2.21 ( 3 )
【多选题】四显示自动闭塞区段通过色灯信号机显示下列信号( )。
A.
一个绿色灯光
B.
一个绿色灯光和一个黄色灯光
C.
一个黄色灯光
D.
一个红色灯光
【单选题】常用于吗啡或海洛因成瘾者脱毒治疗的药物是
A.
哌替啶
B.
可待因
C.
罗通定
D.
喷他佐辛
E.
美沙酮
【单选题】四显示自动闭塞区段的通过色灯信号机比三显示自动闭塞区段的通过色灯信号机多了( )灯光的显示方式
A.
两个绿色
B.
两个黄色
C.
一个绿色和一个黄色
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