催化多巴胺生成去甲肾上腺素的酶是
A.酪氨酸羟化酶
B.多巴胺脱羧酶
C.CDMT
D.多巴胺β羟化酶
E.MAO
参考答案:D
如图所示,试在甲、乙两个“○”内选填“电压表”和“电流表”的符号,使两灯组成并联电路.
Although Oriental ideas of woman's ______ to man prevailed in those days, she did dare to meet with man on equal basis.
A.contribution
B.sacrifice
C.subordination
D.obedience