血肿早期临诊特点是()
A.肿胀缓慢
B.波动感明显
C.局部无热痛
D.界限不明显
E.穿刺液呈淡黄色
参考答案:B
The teacher told us to write ____ composition in class.
A.a eight-hundred-word
B.a eight hundred words
C.an eight-hundred-word
D.an eight hundred words
大黄止血成分是()和()。