后续演进中涉及的新名词有()。
A.HSDPA/HSUPA
B.cdma20001xEV/DO
C.dma2000lxEVDO
D.WiMAX
E.LTE
参考答案:A, B, C, E
嗜酸性粒细胞增高的情况见于
A.伤寒
B.猩红热
C.大面积烧伤
D.寒冷
E.饥饿
There is something wrong with the computer. I can't _____ . [ ]
A. turn on it
B. switch it on
C. turn off it
D. switch off it