汽油机分电器轴向间隙不得大于（）mm。
A、0.25
B、0.50
C、0.75
D、0.90
参考答案：A
She is very dear to us. We have been prepared to do_______it takes to save her life.
A．whichever
B．however
C．whatever
D．whoever
在美国期货市场，利率期货交易品种主要有（）
A.欧洲美元期货
B.短期国债（T-bills）期货
C.中期国债（T-notes）期货
D.长期国债（T-bonds）期货
