抛物线y=(x﹣1)2+2的对称轴是直线_________,顶点坐标为_________.
x=1;(1,2)
与内源性抗原递呈密切相关的分子是()。
A.MHCⅠ类分子
B.MHCⅡ类分子
C.Fc-γR
D.mlg
E.C3bR
We'll stay at home and watch TV if it ______ tomorrow.[ ]
A. won't be fine
B. doesn't fine
C. isn't fine
D. won't fine