在一固定容积的密闭容器中加入2LX和3LY气体，发生如下反应：nX(g)+3Y(g) 2R(g)+Q(g)反应达平衡时，测知X和Y的转化率分别为30% 和60%，则化学方程式中的n值为

A．1

B．2

C．3

D．4

Passage 3

Which of the following is NOT hue about the females working in City of London a. They are trying their best to fight for gender equality in their work. b. They are less vocative of their sexual orientation than men. c. Their working environment gives little tolerance to homosexual people. d. Most of their colleges are heterosexual white males.