减去3x等于5x2-5的代数式是[ ]
A.5x2-6x-5
B.5x2+3x-5
C.5+5x2
D.-5x2-6x+5
答案:B
— ?
—Alan Smith. I'm new here.[ ]
A. Your name, please
B. Are you Alan Smith
C. What's his name
下列宜于斜刺的经穴是()。
A.太溪
B.天窗
C.天泉
D.天牖
E.中府