以下可以排除前列腺癌的是()
A.酸性磷酸酶正常
B. * * 细胞学检查阴性
C.X线检查有前列腺结石
D.已行耻骨上前列腺摘除术
E.经会阴部饱和穿刺活检阴性
参考答案:E
Most nurses are women, but in the higher ranks of the medical profession women are a ______.
A.scarcity
B.minority
C.minimum
D.shortage
塔式起重机分几类?