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【简答题】
December 25th is Christmas Day. In most countries it is the most important day in the year. All the people come back to their homes to have the day with their parents or their children. On Christmas Day bells ring everywhere. The ringing bells tell people Christmas is coming. People sing and dance day and night. They have a good time. Most families buy a Christmas tree for their children. And there are some presents hanging from the tree here and there. People also put presents in children’s stockings. In many places, Father Christmas himself brings presents to them. He is a kind man and in red clothes. There is a big bag on his back. In it there are a lot of presents. Christmas is also a day when people enjoy all kinds of food. But some poor people have no homes and have no food to eat. They die of cold and hunger(饥饿)on Christmas Day. 根据以上短文内容,请判断下列句子的正误,正确的用“T”,错误的用“F”。 小题1:Christmas is a very important day in some countries in a year. 小题2:Many people have a good time on Christmas Day. 小题3:Father Christmas wears red clothes. 小题4:There are a lot of Christmas trees in Father Christmas’bag. 小题5:Some poor people die on Christmas Day because they have no homes and no food to eat.
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【单选题】适合于铸造的铁碳合金中,C含量为 %
A.
4.3
B.
2.1
C.
2.8
D.
4.8
【单选题】某银行总资本为8000美元,总资产为110000美元,加权风险资产为90800美元,该银行的资本充足率为( )。
A.
7.27%
B.
8.81%
C.
3.85%
D.
4.96
【多选题】可以表达精度的是 ( )
A.
精密度
B.
线性度
C.
准确度
D.
正确度
【判断题】进行绝缘试验时 ,被试品温度不应低于-5°C,且空气相对湿度一般不低于80%。
A.
正确
B.
错误
【判断题】进行绝缘试验时,被试品温度不应低于+5℃,户外试验应在良好的天气进行,且空气相对湿度一般不高于80%。()
A.
正确
B.
错误
【简答题】磨削是零件精密加工的主要方法之一,其加工精度可以达到____,表面粗糙度值可达____。
【单选题】某银行总资本为 8000 美元,总资产为 110000 美元,加权风险资产为 90800 美元,该银行的资本充足率为_______。
A.
8.81%
B.
85%
C.
4.96%
D.
7.27%
【判断题】锉削精度可达0.01 mm,表面粗糙度可达Ra 0.8μm ,可以锉削工件的内、外平面、内外曲面 、沟槽及各种复杂表面 ,它是钳工常用的重要操作之一。
A.
正确
B.
错误
【判断题】进行绝缘试验时,被试品温度不应低于5℃,且空气相对湿度一般不大于80%。
A.
正确
B.
错误
【单选题】在进行与温度和湿度有关的各种试验,应同时测量被试品的温度和周围空气的温度和湿度。进行绝缘试验时,被试品温度不应低于(),户外试验应在良好的天气进行,且空气相对湿度一般不高于80%。
A.
+3℃
B.
+5℃
C.
+7℃
D.
+10℃
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