断肢再植吻合血管时,吻合的动静脉的适宜比例为()
A.1:1
B.1:2
C.1:3
D.2:1
E.2:1.5
参考答案:B
根据首字母或汉语提示完成单词。
1. It's difficult for university g_________ to find good jobs these days.
2. Who made the __________(决定) for you, your father or your mother?
3. Your advice is of great v_________ to me. Thank you very much.
4. My mother bought a _________(手提包) for my grandmother.
5. I don't think the black shoes m_________ your white trousers.
吸水管路距底板的安全距离为()米。
A、3
B、2、
C、1
D、0.5