轿厢内指层灯设置在轿厢内,显示其运行()的装置。
A、方向
B、层站
C、层站和方向
D、呼梯方向
参考答案:C
—I wonder what makes you a successful manager.
—I ________ as a waiter for five years,which contributes a lot to my today’s work.
A.serve
B.have served
C.had served
D.served
“雅尔塔体制”对于世界政治有何意义?