已知在某特定条件下材料A与铂配对的热电势为13.9677mV,材料B与铂配对的热电势是8.3455mV,则在此特定条件下,材料A与材料料B配对后的热电势为()mV
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
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