单项选择题
未知题型 最有价值的辅助检查是A.腹部CTB.腹部彩超C.腹部X线片D.胃镜###SXB##
单项选择题 —Shall we go to the movie tonight? —No, Id rather ______ at home with our baby. Youd better not leave it to the babysitter at night. A.you stayed B.you stay C.stayed D.stay
未知题型 某中等氟病区的患者,其症状为肉眼可见牙齿微黄,并有部分人的牙齿缺损,骨关节疼痛,四肢僵直,进而行动困难。化验:尿氟、发氟均增高。最常见的氟中毒流行类型是