一般来说,DRAM的价格要比SRAM的()。
A、高
B、低
C、一样
D、不一定
参考答案:B
In a sports team each player has a clear role, and there are few __________ when members are
uncertain of their roles. [ ]
A. occasions
B. positions
C. chances
D. situations
演示一般分为()等。
A、实物演示
B、模型演示
C、图像演示
D、情景演示
E、动作演示