【单选题】Which of the following is not a kind of deviation?
A.
semicircular deviation
【单选题】Which of the following is not a kind of deviation?______.
D.
semicircular deviation
【单选题】男,16岁,既往体健。发热伴咳嗽、头痛2天。查体:T38.3°C,双肺呼吸音清晰,心脏各瓣膜未闻及杂音。血常规:WBC 8.4x109/L,N 0.76,Hb134g/L。胸部X线片示“右下肺浅淡的渗出影”。下列抗菌药物可作为经验性治疗首选的是
【单选题】There is egg in the bowl.
【单选题】Which of the following is not a kind of deviation?
A.
semicircular deviation
【简答题】n阶对称阵的全体V对于矩阵的线性运算构成一个 维线性空间,给出n阶可逆矩阵P,以A表示V中的任一元素,变换T(A)=P T AP称为合同变换,试证:合同变换T是V中的线性变换。
【单选题】There is egg in bowl.
【简答题】n阶对称阵的全体V对于矩阵的线性运算构成一个 (n+1)维线性空间.给定n,可逆阶矩阵P,对于V中任一元素A,作变换(称为合同变换) T(A)=PTAP, 试证合同变换T是V中的线性变换.