根据气旋的热力结构，将气旋分为（）
A．温带气旋和热带气旋
B．锋面气旋和无锋面气旋
C．锋面气旋和热带气旋
D．温带气旋和锋面气旋
参考答案：B
— Are you glad that you came to Fuzhou?
— Yes, indeed. I ________ going to Beijng or Shanghai. [ ]
A. have considered
B. am considering
C. had considered
D. was considering
胰腺癌最常见的临床表现为（）
A.腹痛，黄疸，消瘦
B.腹痛，休克，黄疸
C.腹痛，腹胀，呕吐
D.腹痛，寒战高热，呕吐
E.消瘦，便秘，呕吐
