[单选题]15.For factor reversal to occur, two commodities must be produced with:
A.A.sufficiently different elasticity of substitution of factors
B.B.the same K/L ratio
C.C.technologically-fixed factor proportions
D.D.equal elasticity of substitution of factorsChapter

[单选题]15.For factor reversal to occur, two commodities must be produced with:
A.A.sufficiently different elasticity of substitution of factors
B.B.the same K/L ratio
C.C.technologically-fixed factor proportions
D.D.equal elasticity of substitution of factorsChapter

[单选题]14.If the tastes for a nation import commodity increases, trade volume:
A.A.increases
B.B.declines
C.C.remains unchanged
D.D.any of the above

[填空题]occur5

[单选题]15.Mutually beneficial trade cannot occur if production frontiers are:
A.A.equal but tastes are not
B.B.different but tastes are the same
C.C.different and tastes are also different
D.D.the same and tastes are also the same.

[填空题]power factor（ ） hydraulic（ ） oil（ ）

[单选题]Boeing adds a conservative factor to flight test data to account for airframe and engine deterioration
A.TRUE
B.FALSE

[单选题]5.If in a two-nation (A and B), two-commodity (X and Y) world, it is established that nation A has a comparative advantage in commodity X, then nation B must hav e:
A.A.an absolute advantage in commodity Y
B.B.an absolute disadvantage in commodity Y
C.C.a comparative disadvantage in commodity Y
D.D.a comparative advantage in commodity Y

[单选题]复制许可因子(replication licensing factor)在细胞周期的哪一期被激活
A.G期
B.S期
C.G期
D.M期
E.G/M期

[单选题]A business formed by two or more individuals who each have unlimited liability for all of the firm's business debts is called a:
A. corporation.
B. sole proprietorship.
C. general partnership.
D. limited partnership.
E. limited liability company.
Difficulty: 1 Easy

[单选题]The connextion between two networks to from an internet is handled by a machine known as a ( )
A.bridge
B.server
C.router
D.switch

[多选题]In performance management, which two factors might reduce the ability of an application to
Scale to a larger number of users?
A. the number of data files containing extents belonging to tables updated by a transaction
B. issuing multiple savepoints during a transaction
C. poorly written SQL
D. poorly trained users who do not commit transactions
E. the number of tablespaces containing tables updated by a transaction

[多选题]Which two are true about duplicating pluggable databases(PDBS) with RMAN?
A. CDB$ROOT and PDBSSEED are automatically duplicated if a PDB is duplicated
B. A user with SYSDBA or SYSBKUP must use RMAN logged in to a PDB in order to duplicate
It.
C. Two or more PDBS can be duplicated with the same RMAN DUPLICATE command
D.The auxiliary instance is automatically created with ENABLE PLUGGABLE DATABASE
TRUE
E. All tablespaces belonging to a PDB must be duplicated when duplicating the PDB

[多选题] in which two scenarios is incomplete recovery required?
Which two are true about changing the LOCAL_UNDO_ENABLED property to false in a CDB?
(Choose two.)
A. After the change, only a common user with the required privilege can create an undo
Tablespace in CDB&ROOT.
B. Any new PDB and existing PDBs are automatically configured to use the default undo
Tablespace in CDB$ROOT.
C. After the change, only one undo tablespace can exist in CDB$ROOT.
D. After the change, any user with the required privilege can create an undo tablespace in the
PDBs.
E. Undo tablespaces existing in PDBs must be dropped before the change.
F. After the change, each existing PDB has to be reopened for the new undo mode to take effect.

[多选题]Which two are true about creating pluggable databases(PDBS)in Oracle 19c and later releases?
A. A PDB snapshot depends on an existing storage snapshot of the source PDB
B. A PDB snapshot can be a full copy of a source PDB
C. A PDB snapshot can be a sparse copy of a source PDB
D. A snapshot copy PDB does not depend on an existing storage snapshot of the source PDB
E. A snapshot copy PDB can be a full copy of a source PDB

[多选题]Examine This configuration: Which two are true?
A. PDB1 C2 SRY will be created and started automatically
B. PDB1 C2 SRV will be created but not started
C. PDB1 will be created in CDB2 and automatically opened.
D. PDB1 C1 SRV in CDBL will be renamed PDB1 C2 SRV
E. PDB1 will be created in CDB2 and left in MOUNT state.

[多选题]Which two are true about memory advisors?
A. If Automatic Memory Management is enabled, the Shared Pool Advisor and Buffer Cache
Advisor are available to set the maximum size for these individual System Global Area
Components
B. If Manual Shared Memory Management is enabled, only the Shared Pool Advisor and Buffer
Cache Advisor are available
C.If Automatic Shared Memory Management is enabled, both the SGA Advisor and PGA Advisor
Are always available.
D. If Automatic Memory Management is enabled, no memory advisors are available.
E. All memory advisors use data from Automatic Workload Repository