单项选择题
What does AMR stand for?（）
A. Audio Modem Riser B. Audio Modem Rectifier C. Audio Multiplication Rectifier D. Audio Modern Riser
单项选择题 Athlon 64 and （）are examples of AMD processors that use the AMD64 architecture.
单项选择题 The （）expansion slot provides faster video performance.
单项选择题 Generally a hard disk drive has multiple disks, known as （）.
