【单选题】Which of the following statements on the 30 people on board is CORRECT?
B.
They were all rescued by a helicopter.
C.
Some of them were rescued by fishing boat.
D.
It was not mentioned in the news.
【简答题】Many people were watching the match yesterday afternoon. There were many people ______ the match yesterday afternoon.
【单选题】关于长波、中波、短波的下列说法中正确的是 [ ]
【单选题】频率、波长、波数及能量的关系是______。
【单选题】关于物理化学法制备微型胶囊下列哪种叙述是错误的( )
D.
微囊化在液相中进行,囊心物与囊材在一定条件下形成新相析出