电控燃油喷射发动机燃油系统压力,多点喷射系统的一般为()。
A、7~103KPa;
B、7~690KPa;
C、62~69KPa;
D、207~275KPa。
参考答案:D
.Our chemistry teacher announced that he would do the experiment in a different way
we might find interesting.
A.which
B.in which
C.in that
D.whom
不增加心肌对儿茶酚胺敏感性的吸入麻醉药是:
A.异氟烷B.氧化亚氮C.硫喷妥钠D.麻醉乙醚E.氯胺酮