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【简答题】
Bill was fourteen years old . He had a part-time job which got him up at five o’clock . He was a newspaper boy . Each morning , Bill left the house at five fifteen to go to the center . The newspapers were delivered there by a truck at midnight . He carried them on his bike . In the winter it was still dark when he got up . Bill had to deliver the newspapers to his customers’( 订户 )houses in all kinds of weather . His customers thought he did a good job . Sometimes they gave him tips( 小费 ) . Bill has 70 customers now. Once a month he had to collect money from his customers. Some day , when he has many more customers , perhaps Bill will win a prize for being a very good newspaper boy . He wants to win a visit to Europe , but he would be happy enough if he won a new bike .
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参考答案:
举一反三
【单选题】对于一个微分单元体,下列结论中错误的是()
A.
正应力最大的面上剪应力必为零
B.
剪应力最大的面上正应力为零
C.
正应力最大的面与剪应力最大的面相交成45度
D.
正应力最大的面与正应力最小的面必相互垂直
【多选题】宪法指引作用的实现途径主要是 ( )。
A.
宪法创制
B.
宪法适用
C.
宪法遵守
D.
宪法修改
【判断题】奇点的曲率无穷大这种说法是正确的。()
A.
正确
B.
错误
【多选题】被尊崇为中华民族的始祖是
A.
炎帝
B.
黄帝
C.
蚩尤
D.
女娲
E.
伏羲
【判断题】奇点的曲率无穷大。()
A.
正确
B.
错误
【多选题】被尊崇为中华民族的始祖是
A.
女娲
B.
伏羲
C.
炎帝
D.
大禹
E.
黄帝
【单选题】对于一个微分单元体,下列结论中 是错误的
A.
正应力最大的面上切应力必为零
B.
正应力最大的面与正应力最小的面必互相垂直
C.
切应力最大的面上正应力必为零
D.
正应力最大的面与切应力最大的面相交成 45 ° 角
【多选题】党的十八大以来,我国之所以能够为世界和平与发展作出新的重大贡献,是因为我国进一步提高了自己的国际( )。
A.
竞争力
B.
影响力
C.
感召力
D.
塑造力
【单选题】对于一个微分单元体,下列结论中 是错误的
A.
正应力最大的面上剪应力必为零
B.
剪应力最大的面上正应力必为零
C.
正应力最大的面与剪应力最大舶面相交成 45 o 角
D.
正应力最大的面与正应力最小的面必互相垂直
【判断题】奇点是时空曲率为无穷大的点。()
A.
正确
B.
错误
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