下列哪项不是类风湿关节炎表现的特征( )。
A. 以小关节为主
B. 呈对称性
C. 晨僵明显
D. 急性期关节明显肿胀 E.后期无关节无畸形
患者男性,20岁,突然畏寒、发热伴有右侧胸痛1天入院。胸透见右中肺有大片炎性浸润阴影,入院后给予抗炎治疗,体温逐渐下降,患者一般情况也逐渐好转。 该患者的诊断可能为
A. 肺炎球菌肺炎B.肺炎支原体肺炎
B. 军团菌肺炎
C. 肺结核
D. 革兰阴性菌肺炎
关于孕期卫生,哪项是错的( )。
A. 孕妇饮食应多样化
B. 孕妇可随意用药
C. 妊娠8个月后应避免重体力劳动 D.妊娠晚期应多取左侧卧位
D. 妊娠最后3个月应避免盆浴和性交
Your class is going to have an English party the coming weekend. The party will probably be more wonderful if some foreign students join in it. You, the monitor, are going to write an invitation to Jennifer Lewis, a student of your college from America, to the party. You should write approximately 100 words. Do not sign your own name at the end of your letter, using "Song Qin" instead. You do not need to write the address.