N—400型内燃机车用铅酸蓄电池的比重为()
A.1.18—1.20
B.1.10
C.1.20—1.22
D.1.2600.005
参考答案:D
1938年,地处长江三峡的湖北宜昌,由民生公司总经理卢作孚指挥船队,抢运战时物资和人员到四川,亲历了宜昌大撤退的晏阳初说,“这是中国实业史上的‘敦刻尔克’,在中外战争史上,这样的撤退只此一例。”可见,“宜昌大撤退”的作用在于
A.增强了国民党军队围剿红军的实力
B.为民族资本主义的兴起奠定了基础
C.为抗日战争的胜利保存了物质力量
D.阻滞了日军对沿海地区的侵略
Many students write to me and ask me _________ their problems and I give them my advice and tell them _________.[ ]
A. how to solve, what to do
B. how can solve, how to do
C. how to solve, how to do
D. how will solve, what to do