便血，色鲜红，下血暴急呈喷射状，属于（）
A.气不摄血
B.湿热下注
C.肠风下血
D.瘀血阻络
参考答案：C
看一看，填一填。
1. It's time to _____
2. Whose are these?
3. Those are my new _____.
4. This is my _____.
5. I have a green _____.
6. It's time for _____.
一般景观要求水域属于《地表水环境质量标准》中规定的( )水域。
A．Ⅴ类 B．Ⅳ类 C．Ⅲ类 D．Ⅱ类
