生产类型是根据什么划分的目前生产类型有哪几类它们各有哪些主要工艺特征

白豆蔻具有止呕的作用，善于治疗

A．胃热呕吐

B．胃寒呕吐

C．胃虚呕吐

D．妊娠呕吐

E．寒饮呕吐

以下是档案检索工具中的( )。

A．室藏归档文件目录
B．人名索引
C．卷宗指南
D．全引文件目录

阿拉伯帝国后期，曾经占据过帝国首都巴格达的外族有( )。 ①蒙古人 ②波斯人 ③印度人 ④突厥人

A．①②③

B．①③④

C．②③④

D．①②④

Which one of the following nursing interventions should be included in a plan of care for a client with a T tube()

A. Maintain client in a supine position while T tube is in place.

B. Keep T tube clamped except for during mealtimes.

C. Inspect skin around the T tube daily for irritation.

D. Irrigate the T tube every 4 hours to maintain patency.

水跃现象是否总对圆锥、螺溜选矿机有利？