【多选题】离心泵开泵前必须进行灌泵的原因是( )。
A.
排除泵体内气体,使管道内液体能被连续不断地吸入泵内
【单选题】What does the passage mainly talk about?
A.
Greenhouse and global warming.
B.
North Atlantic is changing.
C.
Global warming and the salinity of North Atlantic.
D.
NAO and the salinity of North Atlantic.
【多选题】DA公司2018年3月份生产产品时发生如下相关数据: (1)生产的A产品经过两道工序加工完成,共400小时,第一道工序120小时,第二道工序280小时,为简化核算,假定各工序内在产品的完工程度为50%。 (2)第一道工序在产品500件,第二道工序在产品680件,完工产品1000件。 (3)原材料在生产开始时一次性投入,其他成本费用均随着加工进度陆续发生。 (4)A产品本月月初在产品和本月耗用的直接...
【简答题】下图为区域产业结构图,图中①②③表示产业发展的不同阶段。读图并结合所学知识,完成下列各题: 小题1:①阶段的基本特征是 A.第一产业所占比重最大 B.第二产业所占比重最大 C.第三产业所占比重最大 D.三大产业比重相等 小题2:从产业发展的一般规律来看,区域产业结构演变的顺序是 A.①→②→③ B.②→①→③ C.③→①→② D.③→②→①
【单选题】What does Global Localization mean?
A.
A cting globally and t hinking locally.
B.
Thinking locally and acting locally.
C.
Thinking globally and acting globally .
D.
Thinking globally and acting locally.
【单选题】What does the woman say was responsible for her company's success?
B.
The patience it showed
C.
The relationships it formed
D.
The sudden opportunities that appeared
【单选题】What does "a global citizen" mean?
A.
To identify with an ever-growing global community
B.
To actively contribute to positive growth within the community
C.
To believe that all people are equal regardless of their races or religions
【简答题】What does it take to be a global citizen?