治疗血小板减少性紫癜的说法正确的是
A.避免使用可使血小板减少的药物
B.糖皮质激素为首选药物
C.必要时可输新鲜血液
D.脾切除为首选疗法
E.须静点止血药物
参考答案:A,B,C
类风湿关节炎的诊断标准是什么(美国标准)?
I'm waiting for my friend. , I'll go shopping alone. [ ]
A. If she comes
B. If she will come
C. If she doesn't come
D. If she didn't