计算机的外围设备是指（)。A．主存储器B．外存储器C．除主机外的其他设备D．除CPU外的其他设备

Which statement regarding garbage disposal is correct？

A.Records for ground garbage disposal are not required when disposal into the sea occurs more than 25 miles offshore

B.Discharging or transfer of garbage while in port to a shore facility must be recorded

C.Maintaining records for the incineration of garbage aboard ship is not required

D.The recording of garbage disposal should include the approximate weight

Which statement regarding sinking funds is least likely correct？

A. Sinking fund provisions require the retirement of a portion of a bond issue in specified amounts prior to the maturity date.

B. Sinking fund redemptions can be accomplished by making cash payment to the trustee who will then retire the required proportion of the bonds.

C. If rates have declined since the bond was issued, companies are likely to choose to retire a proportion of the debt through the delivery of securities.

(b) Discuss the key issues which the statement of cash flows highlights regarding the cash flow of the company.

(10 marks)

A. Flashback Table can be performed on system tables.

B. Flashback Table operation does not shrink the segments.

C. Flashback Table uses log mining to extract SQL_REDO and SQL_UNDO statements.

D. Flashback Table operation acquires exclusive data manipulation language (DML) locks.

A.The cranes may be operated independently

B.The cranes may be interconnected for twin operation

C.When twinned，the crane rotation on the foundation assembly is unlimited

D.All of the above

A.The cranes may be operated independently

B.The cranes may be interconnected for twin operation

C.The cranes are powered by independent internal combustion power units

D.All of the above

A. It cannot be done in parallel.

B. It can be done at the table level or partition level.

C. It does not require additional storage because the operation is done online.

D. Local and global indexes are maintained automatically during the operation.

A．A.Only statement I is correct

B．B.Only statement II is correct

C．C.Both statements are correct

D．D.Neither statement is correct