在酿酒过程中,能正确反映酵母菌发酵时,产酒量随温度变化的曲线图是( )
A.
B.
C.
D.
答案:C
“形存则神存,形谢则神灭”是由谁提出的()
A、范缜
B、柳宗元
C、周敦颐
D、刘禹锡
VHF Channel 6 is used exclusively for what kind of communications?()
A.Radio checks and time checks
B.Inter-vessel safety and search and rescue
C.Working with helicopters
D.Radio direction finding