超声检查,可见无回声暗区包绕睾丸大部及附睾头()
A.精原细胞瘤
B.畸胎瘤
C.胚胎瘤
D.睾丸囊肿
E.鞘膜积液
参考答案:E
27.-What an amazing story! It’s the most impressive story I’ve ever read.
-But I’m sure it won’t interest ____.
A.somebody
B.everybody
C.nobody
D.Anybody
药物鉴别要求的效能指标为
A.准确度B.检测限C.定量限D.线性与范围E.专属性