计算机的内存储器比外存器 ( )
A．价格便宜
B．存储容量大
C．读写速度快
D．读写速度慢
参考答案：C
—What’s up? Could you tell me what’s ?
—Something is wrong with my MP4. I will get it after school.
A．happened, repair
B．be happened, repairing
C．happening, to repair
D．happening, repaired
The prices of beer_____ from 50 cents to $4 per liter during the summer season.[ ]
A. altered
B. ranged
C. separated
D. differed
