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【简答题】
Thomas Edison was born on February 11, 1847 in Ohio, a state in the US with a l______________ population. He didn’t have much school education 小题1:____________ because the m______________ of his teachers thought he was not clever enough, 小题2: ____________ and his o_____________ of success is merely a dream. However, he became one 小题3:____________ of the greatest ________________ (发明家) with a list of 1,093 U.S. patents. In 小题4: ____________ fact, there was evidence indicating that Edison was to distinguish ____________ 小题5: ____________ later in life. The boy had a great d____________ for knowledge and was curious 小题6: ____________ about things. He did a lot of reading in the library while ___________ a living by 小题7: ____________ selling newspapers on trains. He often __________ (实验)with different things. All 小题8: ____________ these made him so extraordinarily ________________ (成功). Many people think 小题9: ____________ that we owe our way of life _________ his ideas and efforts. 小题10:____________
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举一反三
【单选题】儿童口头言语发展的关键期是()。
A.
1~2岁
B.
3~4岁
C.
5~6岁
D.
7~8岁
【单选题】离心水泵在检修后第一次启动前,需要灌水、排气其目的是()
A.
防止产生真空
B.
为使叶轮进口处产生负压
C.
防止水泵过载
D.
防止飞逸
【简答题】Last year, it _______ 2019.
【判断题】战略人力资源管理是指人力资源管理的出发点,人力资源管理战略是围绕人的管理的全局性的谋划。
A.
正确
B.
错误
【简答题】在儿童的言语发展过程中, 岁是口头言语发展的关键期。
【单选题】设有关系:学生(学号,姓名)、课程(课程号,课程名)、选修(学号,课程号,成绩),其中有下划线的属性组构成相应关系的主码,学号是选修关系的外码,指向学生关系,课程号是选修关系的外码,指向课程关系,则 “查询选修了学生‘95005’所选修的全部课程的学生的学号”所对应的关系代数表达式为:()
A.
选修 ÷课程
B.
选修 ÷Π课程号 ( σ 学号 ='95005'( 选修 ) )
C.
学生 ÷课程
D.
Π学号,课程号 ( 选修 ) ÷Π课程号 ( σ 学号 ='95005'( 选修 ) )
【多选题】建筑安装工程费用构成包括( )。
A.
直接费
B.
基本预备费
C.
间接费
D.
利润
E.
税金
【简答题】图 F.2 所示电路中,已知 U =2 0 0V , f =50Hz , R = 40 0Ω , X L = 30 0Ω 。 开关闭合前电流 I =1 A 。 (1) 求电路中 C 的值; (2) 开关闭合后的电流 I 。
【单选题】_______ of the population was urban in 2019.
A.
50%
B.
60%
C.
70%
D.
80%
【判断题】战略人力资源管理是指人力资源管理的出发点,人力资源管理战略是围绕人的管理的全局性的谋划。()
A.
正确
B.
错误
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