a.c.的含义是A.睡前B.饭后C.饭前D.上午E.下午
a.c.的含义是
A.睡前
B.饭后
C.饭前
D.上午
E.下午
B.饭后
C.饭前
D.上午
E.下午
参考解析
解析:
相关考题:
In a modern three-phase A.C. synchronous brushes generator, the excitation winding is on the rotor. That means .A.The generator need not excitation.B.The winding on the rotor is for inputting excitation current.C.There are three phase windings on the rotor.D.The generator has no brushes.
如图,在梯形A.B.C.D.中,,,A.C.交B.D.于O点,过O作A.B.的平行线交B.C.于E点,连结D.E交A.C.于F点,过F作A.B.的平行线交B.C.于G点,连结D.G交A.C.于M点,过M作A.B.的平行线交B.C.于N点,则线段MN的长为:A.2/3B.5/6C.7/11D.6/25
填空题HACCP的含义是(),GMP的含义是(),SSOP的含义是(),ISO的含义是()。