11.男,40岁。因车祸发生脾破裂,就诊时血压8/4kPa(60/30mmHg),脉率120次/分,病人烦躁不安,皮肤苍白,四肢湿冷。此病人的休克指数为
A. O.5
B. 1. O
C. 1.5
D. 2.O
E. 2.5
查看答案
Select all the active electronic components in the following parts list:
A. Resistor
B. Capacitor
C. Triac
D. IC555
E. LM7912
F. Operational amplifier
2 types of BPJ transistors are
A. PN
B. PNP
C. NPN
D. PNN
E. Base
F. Emitter
A transistor has the following terminals
A. Emitter
B. Collector
C. Base
D. Gate
E. Anode
F. Cathond
A transistor can be mainly used for a/an
A. Rectifier
B. Amplifier
C. Switch
D. Filter
E. LED