【单选题】They felt so _____ that they _____ go to bed early. [ ]
【单选题】在地面图上,水平气压梯度越小的地方,等压线:
【单选题】指数是从某一现象在不同时期的两个数值进行对比的结果,因此指数的数值具有( )
【单选题】Mr. Lewis broke the world ______ for the 100 meters.
【单选题】He is so _________ when he hears the __________news.
【单选题】When he heard the _________ news, he was so _______.
【单选题】在地面图上,水平气压梯度越小的地方,等压线:
【单选题】The news was so ________ that we all felt .
【多选题】双极型晶体管外形各异,品种繁多,但它们的共同特征相同:都有()、()和()