当燃油储量不足时应()。
A. 提高航速尽快抵达加油港
B. 使用油耗率最低的工况,节省燃油
C. 降低转速以节省燃油
D. 除C以外均可
Why was the British government interested in New Zealand?()
A. Trade with New Zealand was economically important.
B. There were no laws to protect Maori rights in dealings with white settlers.
C. The French government was taking an interest in New Zealand,too.
D. All of the above.
以某一先进单位产品成本作为目标成本的一种预测方法称为()。
A. 倒扣测算法
B. 比率测算法
C. 选择测算法
D. 直接测算法
烧结过程中,随着燃烧带的下移,高温区的温度水平趋势是()。
A. 由低到高
B. 由高到底
C. 固定不变