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【单选题】
砂轮组织表示砂轮中磨料、结合剂和气孔间的（ ）A.
面积比例
B.
重量比例
C.
体积比例
D.
质量比例
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知识点：
皮皮学刷刷变学霸
举一反三
【多选题】据资料记载，黑猩猩能模仿人的动作，用水龙头取水灭火。可是当它趟过一条小河去灭火时，却不知道可以用河水灭火。这一事例说明( ) 。
A.
黑猩猩的意识是其大脑的机能
B.
黑猩猩的意识来源于外部世界
C.
黑猩猩的心理与人的意识有根本区别
D.
意识是人类特有的，黑猩猩没有意识
【简答题】辽宁省2017年定额中每层墙体砌筑高度超过( )m时,其超过部分工程量的定额人工乘以系数1.3。
【多选题】据资料记载,黑猩猩能模仿人的动作,用水龙头取水灭火。可是当它淌过一条小河去灭火时,却不知道可以用河水灭火。这一事例说明
A.
黑猩猩的意识是其大脑的机能
B.
黑猩猩的意识来源于外部世界
C.
黑猩猩的心理与人的意识有根本区别
D.
意识是人类特有的，黑猩猩没有意识
【单选题】Which sequences flank the P element of the Drosophila? _________
A.
Repeated
B.
Interstitial
C.
Inverted repeats
D.
Random
E.
ew Answer
【多选题】Which two statements about sequences are true? （）
A.
You use a NEXTVAL pseudo column to look at the next possible value that would be generated from a sequence, without actually retrieving the value.
B.
You use a CURRVAL pseudo column to look at the current value just generated from a sequence, without affecting the further values to be generated from the sequence.
C.
You use a NEXTVAL pseudo column to obtain the next possible value from a sequence by actually retrieving the value from the sequence.
D.
You use a CURRVAL pseudo column to generate a value from a sequence that would be used for a specified database column.
E.
If a sequence starting from a value 100 and incremented by 1 is used by more then one application, then all of these applications could have a value of 105 assigned to their column whose value is being generated by the sequence.
F.
You use REUSE clause when creating a sequence to restart the sequence once it generates the maximum value defined for the sequence.
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