更多"[单选题]15.For factor reversal to occu"的相关试题:
[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
[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.
[单选题]Boeing adds a conservative factor to flight test data to account for airframe and engine deterioration
A.TRUE
B.FALSE
[填空题]power factor（ ） hydraulic（ ） oil（ ）
[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]You are comparing two investment options that each pay 6 percent interest, compounded annually. Both options will provide you with $12,000 of income. Option A pays $2,000 the first year followed by two annual payments of $5,000 each. Option B pays three annual payments of $4,000 each. Which one of the following statements is correct given these two investment options? Assume a positive discount rate. (No calculations needed..
A. Both options are of equal value since they both provide $12,000 of income.
B. Option A has the higher future value at the end of Year 3.
C. Option B has a higher present value at Time 0.
D. Option B is a perpetuity.
E. Option A is an annuity.
Difficulty: 1 Easy
Topic: Present value - multiple cash flows
Learning Objective: 06-01 Determine the future and present value of investments with multiple cash flows.
[多选题]Which two are prerequisites for using FLASHBACK TABLE?
A. Row Movement must be enabled on the table being flashed back
B. A tables indexes must be set to unusable before issuing the flashback
C. A tables constraints must be disabled before issuing the flashback.
D. The FLASHBACK ANY TABLE system privilege or the FLASHBACK object privilege must
Be granted to the user performing the flashbackE. The FLASHBACK ANY TABLE system privilege or the FLASHBACK object privilege must
Be granted to the table owner
[多选题] in which two scenarios is incomplete recovery required?
Which two are true about changing the LOCAL_UNDO_ENABLED property to false in a CDB?
(Choose two.)
A. After the change, only a common user with the required privilege can create an undo
Tablespace in CDB&ROOT.
B. Any new PDB and existing PDBs are automatically configured to use the default undo
Tablespace in CDB$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 reclaiming space used by Flashback logs in Oracle Database 19c and
Later releases?
A.Space is only reclaimed when there is space pressure in the Fast Recovery Area(FRA、
B.Space is always reclaimed automatically when the retention period for Flashback logs is
Lowered
C.Space might be reclaimed proactively before space pressure occurs
D.Space is always reclaimed proactively before space pressure occurs
E. Space might be reclaimed automatically when the retention period for Flashback logs is
Lowered
[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]Which two are true about various Oracle security and auditing capabilities
A. Application-common Transparent Security Data Protection(TSDP)policies can be created only
If all the PDBS in the application container are closed
B. Unified auditing can be automatically synchronized to all application PDBS in an application
Container
C. Application-common OLS policies can be created only if all the PDBS in the application
Container are closed
D. Fine-grained auditing (FGA )policies in an application root are automatically synchronized to
All application PDBS contained in the application container when they are updated
E. Application-common TSDP policies are always container specific.
[多选题]Which two are true about SQL Performance Analyzer(SPA.?
A. It offers fine-grained analysis of all the SQL statements in the analysis task as a group
B. It provides before and after execution statistics for each SQL statement in the analysis task.
C. It is integrated with the SQL Access Advisor.
D. SQL statements that were originally run concurrently are run concurrently by SPA
E. It predicts the impact of system changes on SQL workload response time
[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
