发酵过程温度控制采用()工艺,可减少α-乙酰乳酸和一些挥发性风味物质的形成,还有利于双乙酰的还原。
A.低温
B.高温
C.先高温后低温
D.先低温后高温
参考答案:D
如果三角形的两边长分别是3和4,那么连接这个三角形三边中点所得到的三角形周长可能是 ( )
A.4.5
B.4
C.3.5
D.8
— What's your best friend like?
— ___________. [ ]
A. He likes Maths
B. He likes swimming
C. He is a teacher
D. He is polite and has a round face