消化性溃疡最主要的症状是()。
A.恶心、呕吐
B.缓脉、多汗
C.腹胀、腹痛
D.嗳气、反酸
E.节律性上腹部疼痛
参考答案:E
It was fine yesterday so I ______ the trouble to carry my raincoat with me.
A.don’t need to take
B.mustn’t have taken
C.didn’t need to take
D.needn’t have taken
下面哪种病可以看到KerleyB线()
A.胸膜炎
B.病毒性肺炎
C.慢性支气管炎
D.肺水肿
E.肺脓肿