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听力原文: Now we're always hearing about road accidents and when we're in a car we try to drive carefully, but how many of us take the same degree of care in our homes? Any large hospital will tell you the number of accidents that happen in the home is almost the same as those on the road. One of the most common and most dangerous causes of borne accidents is wrong and careless use of electrical equipment. People will continue to use a loose plug without first turning off the power. In spite of warnings, one will carry an electric heater into the bathroom when he is going to have a bath. Sometimes one forgets to cut off the power before mending a lamp or something else. All these will cause accidents. So the rule about anything that works by electricity is: SWITCH OFF before you touch anything and don't pretend you know when you actually don't. If you've got children in the house, it's always best to keep medicines of any kind out of their reach. Otherwise they may be taken for candies or a new kind of drink. When there are older people living with you, you have to take particular care in a number of ways in order to make them safe and happy. Fire, of course, is always a risk. So, remember not to dry clothes in front of fires, or leave stoves in the middle of rooms where they can easily be knocked over. And don't forget to keep the children away from fire. Smoking, too, may cause fire. So you'd better give it up. Safety first may mean a little more time and care, but it may save a lot of trouble. (30)
A.
Wrong use of electrical equipment, scald and smoking.
B.
Electric shock, medicine poisoning and fire.
C.
Electric bum and gas poisoning.
D.
All of the above.
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【单选题】当t=0时,一简谐弹簧振子正经过平衡位置向X轴正向运动,此弹簧振子的运动方程可表示为( )
A.
x = Acos(ωt+π/2)
B.
v = v max cos(ωt+π)
C.
a = a max sin(ωt - π/2)
D.
x = Acos(ωt+π3/2)
【简答题】根据句意和音标提示,写出相应的单词。 1.I don't know the answers to the _____ . 2.Is there anything _____ in today's newspaper? 3.I was born in  ____ 4.I think this film is ____ , so I like it very much. 5.What are you ...
【判断题】填写原始凭证时小写金额¥30068.45,大写应写为:人民币叁万零陆拾捌元肆角伍分整
A.
正确
B.
错误
【多选题】关于网站banner的描述,下列选项说法正确的是()。
A.
Banner图是网站广告中最常见的广告形式。
B.
Banner图将文字信息图片化,以更直观的方式将信息进行展示。
C.
在设计时可采用左右构图、正三角构图、倒三角构图、对角线构图、扩散式构图的样式。
D.
尺寸高度一般为500像素。
【单选题】当t=0时,一简谐弹簧振子正经过其平衡位置向X轴正向运动,弹簧振子的运动方程可表示为( )
A.
x = Acos(ωt+π/2)
B.
v = v max cos(ωt+π)
C.
a = a max sin(ωt - π/2)
D.
x = Acos(ωt+π3/2)
【简答题】Is there anything you want from town? I’m going to get those letters ________ ( mail ) .
【判断题】填写原始凭证时小写金额¥30068.45,大写应写为:人民币叁万零陆拾捌元肆角伍分整。( )A. √ B. ×
A.
正确
B.
错误
【单选题】如图 9 — 8 所示,弹簧振子在光滑水平面上做简谐运动力, O 为平衡位置, A 、 B 为其最大位移处,当振子经过 P 点时开始计时,即 t = 0 .则下述说法中正确的是:
A.
当振子的速度再次与 0 时刻相同时,则弹簧振子经过的时间一定是一个周期;
B.
当振子第二次通过 P 点时,振子的速度一定与0时刻的速度相同;
C.
当振子经过 P 点时,其加速度与速度均与0时刻相同;
D.
当振子经过 P 点时,其加速度与0时刻相同,而速度不一定相同.
【判断题】填写原始凭证时小写金额¥30068.45,大写应写为:人民币叁万零陆拾捌元肆角伍分整。
A.
正确
B.
错误
【多选题】孟子所说的“民本思想”主要包括( )
A.
社稷次之
B.
民为贵
C.
君为轻
D.
老百姓是天
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