描述电源能量转化本领大小的物理量是( ) A.电动势 B.电源的总功率 C.端

题型:选择题

问题:

描述电源能量转化本领大小的物理量是(   )

A.电动势

B.电源的总功率

C.端压

D.电源的输出功率

考点:实验:测定电池的电动势和内阻
题型:选择题

The number of chairs in the room __ ten. I’m afraid a number of chairs in the room ___ lost.

A.is; is

B.is; are

C.are; is

D.are; are

题型:选择题

网络媒体

题型:选择题

Virtualization is an approach to IT that pools and shares()so that utilization is optimized and supplies automatically meet demand. Traditional IT environments are often silos, where both technology and human()are aligned around an application or business function. With a virtualized(), people, processes, and technology are focused on meeting service levels,()is allocated dynamically, resources are optimized, and the entire infrastructure is simplified and flexible. We offer a broad spectrum of virtualization()that allows customers to choose the most appropriate path and optimization focus for their IT infrastructure resources.

where both technology and human()are aligned around an application or business function.

A.profits

B.costs

C.resources

D.powers

题型:选择题

患者男,7岁,因“上腹部持续剧烈疼痛20h”来诊。活动时疼痛加重,呕吐1次。查体:T38.5℃,P130次/min,BP90/52mmHg;巩膜略黄;腹部膨隆,软,上腹部明显压痛,肠鸣音减弱,墨菲征(+)。

此时的处理包括(提示腹腔穿刺液淀粉酶800U(Somogyi单位))()

A.抗生素

B.生长抑素

C.气管切开

D.全胃肠外营养

E.止血芳酸、止血敏

F.输血

G.留置导尿

题型:选择题

张力辊的辊子润滑方式为()

A.油脂润滑

B.油气润滑

C.飞溅润滑

更多题库