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【单选题】

To figure out how many percent of an energy input may be transformed into end energy in a period, we can use____

A.
energy density
B.
degree of utilization
C.
energy efficiency
D.
overall energy consumption
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参考解析:
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刷刷题刷刷变学霸
举一反三

【单选题】Dali Ancient Town is located in the ______.

A.
Dai Autonomous Prefecture
B.
Bai Autonomous Prefecture
C.
Yi Autonomous Prefecture
D.
Lisu Autonomous Prefecture

【多选题】下列颅脑疾病,适用于磁共振检查的是()

A.
脑血管性疾病
B.
颅内占位性病变
C.
颅内感染性病变
D.
脑部退行性病变及脑白质病变

【单选题】Which one is the commercial road of the south-north direction?

A.
The Southern Silk Road
B.
The Northern Silk Road
C.
The Ancient Tea- Horse Caravan Road
D.
The Burma Road