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【单选题】
下列关于众筹的主要规则说法不正确的是（）。A.
筹资项目必须在发起人预设的时间内达到或超过目标金额才算成功
B.
在设定天数内，达到或者超过目标金额，项目即成功，发起人可获得资金
C.
众筹不是捐款，支持者的所有支持一定要设有相应的回报
D.
众筹是捐款，支持者的所有支持可以不设有相应的回报
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知识点：
皮皮学刷刷变学霸
举一反三
【单选题】对图的邻接表的叙述中，（ ）是正确的。
A.
无向图的邻接表中第i个顶点的度为第i个边链表中结点数的2倍
B.
邻接表比邻接矩阵的操作更简便
C.
邻接矩阵比邻接表的操作更简便
D.
求有向图结点的度，必须遍历整个邻接表
【单选题】Recent breakthrough in bioengineering technology has enabled the increased scale of producing both ethanol and bio-diesel.
A.
Y
B.
N
C.
NG
【单选题】对邻接表的叙述中, ( )是正确的。
A.
无向图的邻接表中，第i个顶点的度为第i个链表中边结点数的两倍
B.
邻接表比邻接矩阵的操作更简便
C.
邻接矩阵比邻接表的操作更简便
D.
求有向图中结点的度必须遍历整个邻接表
【单选题】The author mentions Csikszentmihalys survey to show that
A.
creative workers are most productive when they are doing nothing.
B.
creative workers consider e-mails and meetings as their enemies.
C.
creative workers don't like to take part in interviews.
D.
creative workers don't like to be distracted from work.
【简答题】Please give the produc t of the following reaction.
【单选题】Which factor must be considered when determining the order of loading of dissimilar products through the same piping system aboard a tanker?
A.
Contamination of the cargo
B.
Flash points
C.
Reid vapor pressures
D.
Specific gravities
【单选题】The Ethical Consumer Research Association will provide information to shoppers on
A.
product price.
B.
product quality.
C.
production methods.
D.
manufacturers.
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