《中华人民共和国传染病防治法》法定的丙类传染病是（）
A.霍乱
B.伤寒和副伤寒
C.淋病
D.麻风病
E.人感染高致病性禽流感
参考答案：D
中年以上男性持续或间断咯血痰或少量咯血，最大可能是
A．肺炎B．肺脓肿C．肺气肿D．肺癌E．肺栓塞
I didn’t understand the ______question, so there was a ______expression on his face.[ ]
A. puzzling, puzzled
B. puzzling, puzzling
C. puzzled, puzzled
D. puzzled , puzzling
