黑热病的典型热型为
A.不规则热,约占1/3B.稽留热,约占1/3C.驰张热,约占1/3D.双峰热,约占1/3E.回归热,约占1/3
参考答案:D
一支气管肺癌病人,近来出现头面部、颈部和上肢水肿。查体可见颈静脉怒张,其发生是由于()
A.上腔静脉阻塞
B.下腔静脉阻塞
C.癌转移至心包积液
D.癌转移至胸腔大量积液
E.以上均有可能
There _____ be any difficulty about passing the road test since you have practiced a lot in the driving school. [ ]
A. mustn't
B. shan't
C. shouldn't
D. needn't