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【简答题】
管胞除具 的功能外,还兼有 的功能。
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【单选题】虚拟语气 He ____busy yesterday, or he ___you with your experiment. A. was, had helped B. was, would have helped C. had been, would have helped D. were, would have helped
A.
was, had helped
B.
was, would have helped
C.
had been, would have helped
D.
were, would have helped
【简答题】(1)创建集合A,包含元素为"1"、"2"、"3" (2)创建空集合B (3)使用字符串“1234”创建集合C (4)实现集合A、C间的基本操作:交集C&A、并集C|A、差集C-A、补集C^A (5)将数据项“2”增加到集合B中 (6)返回集合C的一个副本,赋值给D (7)随机返回集合D中的一个元素 (8)返回集合A中的元素个数 (9)判断数据项“2”是否在集合C中 (10)移除集合A中的所有数据...
【单选题】An error of commission is one where:
A.
A transaction has not been recorded
B.
One side of a transaction has been recorded in the wrong class of account, such as non-current assets posted to inventory
C.
An error has been made in posting a transaction
D.
The digits in a number are recorded the wrong way round
【单选题】Suppose the ordinary user 'user1' has a file 'ABC' in the current directory and he wants to execute this file. But when type 'ABC' at the '$' prompt. The system reports an error. So the possible reaso...
A.
(1)
B.
(1) (2)
C.
(2) (3)
D.
(1) (2) (3)
【单选题】Exhibit， error You work as a database administrator for Supportcenter.cn. When you try to connect to the database， you get an error （See exhibit）. What could be the possible reason for getting such an...
A.
Database is not open
B.
Listener is not running
C.
Service name is not correct
D.
Wrong port number used in URL
E.
Usersysdoes have themediaprivilege
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