搜题请搜索小程序“爱下问搜题”
问题 多项选择题

压疮创面组织类型属于腐肉的是（）

A.黄色组织以条索状粘附在伤口床

B.白色组织以浓厚结块粘附在伤口床

C.黑色色组织粘附在伤口床

D.棕褐色组织牢固附着在伤口床

答案

参考答案：A, B

填空题

单词拼写。

1 ．Scientists have made many important_______ (发现)．

2.An____ (突然的)change of policy made everything up.

3 ．The store sells agricultural______ (产品)．

4.I keep my reference books near my desk for_______ (方便)．

5. He ate a light lunch in____ (期望)of a good dinner.

6. He likes inventions and he has applied for a p____ .

7. I've never seen so much m_____  and disorder.

8. It's an interesting idea but there are many p  _____  difficulties.

9. As _____   world is essential to economic growth.

10. He goes to visit his grandparents not regularly but o _____   .
查看答案
单项选择题

钢材的疲劳极限的含义是( )。

A．试件在一定的应力作用下，达到破坏的时间
B．试件在交变应力作用下，直到破坏所经历的应力交变周期数
C．试件在均匀递加应力作用下发生断裂时的最大应力
D．试件在交变应力下在规定的周期内不发生断裂的最大应力
查看答案