垂体瘤的分类依据?
参考答案:
根据:①激素分泌细胞的起源,可为单一激素性或多激素性;②肿瘤大小,可分为微腺瘤和大腺瘤;③有无侵袭周围组织;④免疫组化和电镜特征。
句子转换,看例句,仿写句子。
例句:This is a dish. → These are dishes.
Here is a dress. → Here are dresses.
1. This is a bus. →
2. Here is a watch (手表). →
3. This is a man. →
4. Here is a woman. →
5. This is a child. →
地质构造的复杂程度和煤层稳定程度均为Ⅰ类者定为()。
A.Ⅱ类矿井
B.Ⅲ类矿井
C.Ⅰ类矿井
D.Ⅳ类矿井