【简答题】如果设f(x)= x 2 x 2 +1 ,那么f(a)表示当x=a时, x 2 x 2 +1 的值,即f(a)= a 2 a 2 +1 .如:f(1)= 1 2 1 2 +1 = 1 2 . (1)求f(2)+f( 1 2 )的值; (2)求f(x)+f( 1 x )的值; (3)计算:f(1)+f(2)+f( 1 2 )+f(3)+f( 1 3 )+…+f(n)+f( 1 n ) (结果用含有n...
【单选题】听力原文:W: Please, please, can you help me? I seem to have lost my handbag. M: Calm down, Madam. Well, I'll have to fill out this report for you. What color is it, Madam? W: Well, it is a white one. M: H...
B.
In the police station.
【单选题】患者,女,33岁。G P ,孕38周,妊娠合并糖尿病,胎膜早破2小时入院。首选处理方法是
【单选题】38周妊娠合并糖尿病,胎膜早破2小时入院。首选处理方法是下面哪一项
【单选题】Q:Can you help you, madam?
【单选题】38周妊娠合并糖尿病,胎膜早破2小时入院。首选处理方法是
【单选题】女性,33岁,G 2 P 1 ,孕38周,妊娠合并糖尿病,胎膜早破2小时入院。首选处理方法是()
【单选题】女性,33岁,GP,孕38周,妊娠合并糖尿病,胎膜早破2小时入院。首选处理方法是()
【简答题】阅读下面第(1)题的解答过程,然后解答第(2)题. (1)已知-2x m+5n y 5 与4x 2 y m-3n 是同类项,求m+n的值. 根据同类项的意义,可知x的指数相同,即:m+5n=2.y的指数也相同,即m-3n=5. 所以:(m+5n)+(m-3n)=2+5,即:2m+2n=2(m+n)=7 所以: m+n= 7 2 (2)已知x m-3n y 7 与 - 1 2 x 3 y 3m+11...
【简答题】阅读理解。 Swimmer wanted Can you swim? Do you like kids? Can you help them to swim on weekends? Come and join us. Call Jane at 330-9785 for more information. Musicians wanted Boys and girls, are you musi...