【判断题】美国国家公园是美国最宝贵的历史遗产之一,它作为美国人的公共财产得到管理,并为让后代享用而得到保护维修。美国利用国家公园保护国家的自然、文化和历史遗产,并让全世界通过这个视窗了解美国的壮丽风貌、自然和历史财富以及国家的荣辱忧欢。不管经济和其他方面的考虑,一个新的公园区域必须满足全国性意义、适合性和可行性三项标准。
【单选题】What does the speak say about British people's attitude toward scientific activities in 17th century?
A.
British people generally did not attach much importance to scientific research.
B.
British people generally thought that scientific work had little to do with business success.
C.
British people generally believed that scientific discoveries were the basis of business Success.
D.
British people generally did not like scientific research as it was always boring.
【单选题】根据《旅行社调理》规定,旅行社被吊销旅行社业务许可证的,其主要负责人在旅行社业务许可证被吊销之日起()内不得担任任何旅行社的主要负责人。
【简答题】"Family"is of course an elastic word. But when British people say that their society is based on family life,they are thinking of "family" in its &39;narrow,peculiarly European sense of mother, father...
【简答题】同学们,根据最新的运费报表(见附件),作业上交两张EXCEL表格,一个做“4PX新邮经济小包”,一个做”中国邮政挂号小包”的运费标准。基准包邮国家为“美国”,算出标准运费减免就好。要求1. 包邮国家 2. 不同梯度减免额度的国家(如70%, 60%等)用统一色块 3. 不发货国家也要专门做。4. 每个国家要列出所处的大洲,分为“亚洲、欧洲、非洲、大洋洲、南美洲、北美洲”六大洲。同时,减免额度也要做...
【判断题】( )4PX新邮挂号小包的运费计算标准为:实际重量×标准运费+挂号费。
【判断题】( )4PX新邮挂号小包的运费计算标准为:实际重量×标准运费+挂号费。
【简答题】如下图的液位控制系统,若液位变送器的测量范围为0-2m,控制器上均按0-100%显示测量值和给定值,控制器采用PI控制规律,则当给定值为40%时,控制系统稳定后液位为多少?