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【单选题】
该程序功能是当成绩大于等于60时,打印及格。则填空处应填写_______. #include void main( ) { floatscore; scanf("%f",&score); if () printf("打印及格");
A.
score>60
B.
score>=60
C.
成绩 >60
D.
score ≥ 60
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举一反三
【单选题】Many coaches and parents are in the habit of criticizing young athletes______.
A.
without realizing criticism may destroy their self confidence
B.
in order to make them remember life's lessons
C.
believing that criticism is beneficial for their early development
D.
so as to put more pressure on them
【判断题】发展性原则是指幼儿园心理环境的创设要符合幼儿的年龄特征及身心健康发展的需要,促进每名幼儿全面、和谐地发展。( )
A.
正确
B.
错误
【简答题】变压器空载时,二次绕组( )感应电动势;二次绕组( )磁通势;负载运行时变压器中的电流是由( )决定的;
【简答题】学前教育机构的硬件建设和设施要符合幼儿年龄特点,符合国家规定的卫生安全标准。()
【多选题】“ager” means a person from 13 to 19 years old. Although they’re young, they have to make many important choices by themselves. Often teachers and parents cannot handle them because they don’t unde...
A.
Their teachers.
B.
Theirs parents.
C.
Their friends.
D.
Movie stars. 小题3: What does the passage mainly talk about? Everybody needs to make choices. agers need to make choices by themselves. agers know more about TV shows and music. Teachers and parents should help agers as much as possible.
【单选题】当变压器一次绕组通入直流时,其二次绕组的感应电动势( )。
A.
大小与匝数成正比
B.
近似于一次绕组的感应电动势
C.
大小不稳定
D.
等于零
【单选题】变压器一次绕组通入直流时,其二次绕组的感应电动势( )。
A.
大小与匝数成正比
B.
近似于一次绕组的感应电动势
C.
大小不稳定
D.
等于零
【单选题】变压器中一次绕组和二次绕组感应电动势的变化与磁通的关系
A.
超前90度
B.
超前180度
C.
滞后90度
D.
滞后180度
【单选题】You re______understand the real meaning of love.
A.
too young to
B.
so young as to
C.
young enough to
D.
as young as to
【简答题】变压器空载时,二次绕组( )感应电动势;二次绕组( )磁通势;变压器中的电流是由( )决定的。
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