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【判断题】
data.frame()函数输出的是一个数据矩阵。
A.
正确
B.
错误
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参考答案:
举一反三
【单选题】使用4个触发器进行级联而构成二进制计数器,最多可以计数的脉冲个数为
A.
12
B.
15
C.
16
D.
32
【单选题】What is the RECOVERABLE AMOUNT of an asset?
A.
lts current market value less costs of disposal
B.
The lower of carrying amount and value in use
C.
The higher of fair value less costs of disposal and value in use
D.
The higher of carrying amount and market value
【单选题】What is the RECOVERABLE AMOUNT of an asset?
A.
Its current market value less costs of disposal
B.
The lower of carrying amount and value in use
C.
The higher of fair value less costs of disposal and value in use
D.
The higher of carrying amount and market value
【单选题】已知某工作的ES=4d,EF=8d,,LS=7d,LF=11d,则该工作的总时差为(    )。
A.
2d    
B.
3d    
C.
4d    
D.
6d
【单选题】执行()命令操作,元器件按顶端对齐。
A.
Align Right
B.
Align Top
C.
Center Horizontal
D.
Align Bottom
【单选题】What Paul Dalton says in the last paragraph is to show
A.
Jatropha can make a great amount of money for him.
B.
Jatropha can make a difference for his company.
C.
Jatropha may play an important role for many countries.
D.
Jatropha may grow like weeds in Caribbean countries.
【多选题】下列化合物中,属于稠杂环化合物的是
A.
吲哚
B.
吡啶
C.
嘌呤
D.
嘧啶
E.
喹啉
【单选题】已知某工作的ES=4,EF=8,LS=7,LF=11,则该工作的总时差为
A.
2
B.
3
C.
4
D.
6
【单选题】下列化合物中不属于稠杂环化合物的是:
A.
吡喃
B.
噻吩
C.
嘌呤
D.
嘧啶
【简答题】审贷分离制度就是将贷款过程的 人员三分离的制度。
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