中年以上妇女戴黑色高筒帽的少数民族是（）。
A.傣族
B.藏族
C.白族
D.苗族
参考答案：A
In order to improve the performance of a network server, you need to select bus or local bus. The appropriate local bus is
A． VESA
B． PCI
C． EISA
D． ISA
While cleaning the room yesterday, I _______ an old photo of my mother.
A．came out
B．came across
C．came about
D．came up with
