良恶性丙种球蛋白血症的鉴别诊断应首选()
A．Ig含量测定
B．骨髓涂片检测
C．血清蛋白区带电泳
D．对流电泳
E．火箭免疫电泳
参考答案：A
进行内部因素分析时，常用的内部指标不含( )。
A．风险性B．安全性C．盈利性D．流动性
I was just going to cut my rose bushes, but someone () it. Was it you
A. has done
B. had done
C. would do
D. will do
