【简答题】A.By different gestures. B.By different voices. C.By different colors. D.By different costumes.
【单选题】They all have _______. [ ]
【单选题】A single barometric pressure reading of 28.60 indicates ______.
A.
rapidly improving weather
C.
a severe low pressure system
【单选题】Last summer we visited the Weat Lake,______ Hangzhou is famouse in the world.