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【简答题】
丰田的Prius的DC/DC转换器将HV蓄电池和发电机发出的201.6V直流电流减压至____V,以供车辆的辅助设备、电子部件ECU作为电源使用
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【单选题】The majority of medium speed and high speed marine diesel engines for main or auxiliary drive operate on the _____ cycle.
A.
two-stroke
B.
four-stoke
C.
long-stroke
D.
short-stroke
【单选题】China's high-speed train is NOT famous for its ______ .
A.
safety
B.
comfort
C.
Wi-Fi network
D.
high speed
【单选题】On Feb. 6, Xi’an – Zhenzhou High – Speed Railway,_________first high – speed railway in_______West China, was put into operation.
A.
不填；the
B.
the; the
C.
the; 不填
D.
不填；不填
【简答题】high-speed mixing gllinulation
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