某快餐店今天提供的素菜有两样，荤菜有三样，小红想吃两荤一素，有（ ）种选法，小明想吃两素一荤，有（ ）种选法。
6，3
病历摘要：男，28岁，已婚，有不洁性生活史， * * 轻度不适，有浆液性分泌物，尿沉渣涂片：白细胞10/HP，化验衣原体（+）。其妻无任何自觉症状。
患者再次予阿奇霉素1g一次顿服治疗后症状完全消失，携其妻子来医院就诊，则下列哪项检查最有确诊意义（）
A.宫颈分泌物涂片
B.宫颈分泌物淋菌培养
C.尿常规检查
D.尿细菌培养
E.衣原体检测
句型转换。
1. He has to clean his room himself. (一般疑问句)
_______ he ________ clean his room himself?
2. You'd better take out the trash. (否定句)
You'd better ________ out the trash.
3. It's a very boring thing. (感叹句)
________ it is!
4. She cleans her room twice a week. (对划线部分提问)
________ she ________ her room?
5. They took some photos there. (否定句)
They ________ photos there.
