【简答题】在六味地黄丸的显微定性鉴别中,茯苓的特征为不规则分枝状团块无色,遇水合氯醛液溶化;菌丝无色,直径 μm。
【单选题】An aircraft turbine engine is usually composed of ___________.
A.
compressor, combustion, turbine and exhaust
B.
fan, injector, turbine and exhaust
C.
f an, combustion, turbine and discharger
D.
compressor, combustion, turbine and discharger
【单选题】The highest pressure in a gas turbine engine is at:
A.
inlet of the combustion chamber
C.
outlet of exhaust piper
【单选题】The basic main components of a gas turbine engine are .
A.
an air inlet, compressor, combustion chambers, the stringer, and exhaust
B.
an air inlet, compressor, combustion chambers, a turbine section, and exhaust
C.
an air inlet, compressor, combustion chambers, a turbine section, and electrostatic conductor
【单选题】The basic main components of a gas turbine engine are .
A.
an air inlet, compressor, combustion chambers, the stringer, and exhaust
B.
an air inlet, compressor, combustion chambers, a turbine section, and electrostatic conductor
C.
an air inlet, compressor, combustion chambers, a turbine section, and exhaust
【单选题】What is the TSR of a wind turbine?
A.
It is the technical safety requirements for a wind turbine
B.
It is the total stress range of the tower
C.
It is the test summary report produced before the turbine leaves the factory
D.
It is the tip speed ratio, the ratio of the speed of the tip of the blade to wind speed
【单选题】目前采用的可以控制军团菌肺炎流行的措施是:
【单选题】目前采用的可以控制军团菌肺炎流行的措施是: