Is this ______ pencil sharpener?[ ]
A. he
B. he's
C. his
答案:C
65岁,男性。3月来不规则发热,全身肌痛、肌无力,吞干食困难,两上下睑及颊部水肿性紫红斑,小指甲后皱襞肿胀发亮。诊断为()。
A.系统性红斑狼疮
B.皮肌炎
C.硬皮病
D.盘状红斑狼疮
产妇心力衰竭时给氧流量和氧气湿化液为()
A.2~4L/min50%乙醇
B.6~8L/min75%乙醇
C.6~8L/min50%乙醇
D.4~6L/min75%乙醇