下列各项措施中,最有利于延长水果保鲜时间的是[ ]
A.充入O2,温度为5℃
B.充入CO2,温度为25℃
C.充入O2,温度为25℃
D.充入CO2,温度为5℃
答案:D
—How did you find your journey to Australia, Tina?
—_______.
A.Quite by accident
B.It was my pleasure
C.It was great
D.I read about it in a book
下列函数中函数值为数值型的是( )。
A.YEAR()
B.DATE()
C.TIME()
D.DATETIME()