【单选题】What can explain the fact that DVD players decreased in price during the 1990s even as more DVD players were being sold?
A.
The demand for DVDs was declining.
B.
The supply of DVD players was increasing more than the demand for DVD players.
C.
The supply of DVD players was decreasing.
D.
The demand for DVD players was increasing more than the supply of DVD players.
【多选题】POCT的检验质量难以保证的原因主要有()
B.
报告内容不规范,包括检测项目、检测结果、计量单位等
D.
非检验操作人员如医师和护士等工作人员没有经过适当的培训
【判断题】唐代是瓷器最兴盛的时代,而青花瓷尤其出众。()
【判断题】Volatile RAM holds data even when the computer is turned off.
【判断题】在抢截球的过程中只要碰触到足球了,即使踢到了对方运动员也不算犯规。
【判断题】A DVD holds even less information than a CD.
【单选题】热在固体中是 从 的地方向 的地方传递的。
【单选题】Even with his remarkable achievements, Myra’s husband still holds a ____ position in the local government.