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【单选题】
如欲对一张原理图通过自动布局和自动布线的方法将其转化为PCB图,在绘制原理图时,元件符号中的哪一个属性必须根据实际元件尺寸进行填写
A.
Lib ref
B.
Footprint
C.
Designator
D.
Part Type
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【多选题】农业数据库的类型包含( )。
A.
农业资源信息数据库
B.
农业技术信息数据库
C.
农业政策法规数据库
D.
农业机构数据库
【简答题】从单词列表A-H中选择合适的词填空,并填上对应的英文字母(大写) Years ago, doctors often said that pain was a normal part of life. In particular, when older patients __1__ of pain, they were told it was a natural part of aging and ...
【简答题】For many environmentalists, the world seems to be getting worse. They have developed a hit-list of our main fears: natural resources are __1__ out the population is ever growing, leaving less and less...
【单选题】Immeasurable quantity of natural { } was lost forever through misuse. ( )
A.
presence
B.
advanced
C.
prevalent
D.
sum
E.
resource
F.
context
G.
generate
H.
critical
【简答题】阅读理解。 I was the middle child of three, but there was a gap of five years on either side, and I hardly saw my father before I was eight. For this and other reasons I was somewhat lonely. I had the only...
【多选题】农业数据库的类型包含( )。
A.
农业资源数据库
B.
农业技术数据库
C.
农业生产数据库
D.
农业科技文献数据库
【判断题】刘易斯认为工业的边际产品大于边际产品的成本时会促使劳动力由农业流向工业。
A.
正确
B.
错误
【单选题】投资回报率用什么英文字母表示,怎么计算投资回报率呢?
A.
ROI,利润/投资总额*100%
B.
RBI,利润/投资总额*100%
C.
ROI,毛利润/投资总额*100%
D.
ROI,利润/销售总额*100%
【单选题】刘易斯认为工业的边际产品大于()时会促使劳动力由农业流向工业。
A.
边际成本
B.
生存工资
C.
资本积累
D.
边际产品的成本
【简答题】A) ually B) depressed C) neglect D) comforted E) separated F) wandered G) celebratory H) demonstrates I) restore J) grieve K) remarkable L) enered M) instantly N) inspire O) perform The ele...
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