对锅炉结构的要求:炉墙应有良好的()。
A.承载能力
B.强度
C.密封性
参考答案:C
我给句子排排队。
1. Where are they?
2. Nice to meet you.
3. This is my mother. She's a teacher.
4. Come and meet my family.
5. They are in the kitchen.
6. Nice to meet you, too.
7. What would you like?
8. I'd like an apple.
正确的顺序:
关于医源性胆管损伤的叙述,不正确的是()。
A.可为胆管横断性损伤或部分损伤
B.胆管被横断结扎后,均合并胆管感染症状
C.90%以上的胆管损伤发生于胆囊切除术
D.常见于胆囊管、肝总管、胆总管汇合部受损
E.如为损伤性胆管狭窄,术后早期可无临床表现