in many places a counter current flows in opposition to the main current close to the bank
current can vary with depth of water and large deep draught ships can experience different current effects at differing parts of the hull tend to turn to the wind
as speed is reduced,the increased proportion of the ship's vector which is attributable to current will set the ship close to obstructions
when close to the berth in a head current,there is a danger that flow inshore of the ship becomes restricted and the ship is subject to interactive forces
第1题:
A.The gesture of nodding means "Yes" in all cultures.
B.Nonverbal signs can be used as a means of substituting for verbal communication
C.The handshake is the most common touching behavior. of greeting business people
D.In western countries, personal space is highly valued
第2题:
All of the following are true EXCEPT __.( )
[A] men tend to talk more in public than women
[B] nearly 50 percent of recent divorces are caused by failed conversation
[C] women attach much importance to communication between couples
[D] a female tends to be more talkative at home than her spouse
第3题:
A、blood
B、feces
C、saliva
D、semen
第4题:
All of the following commands can be used to place an interface into the "down" state EXCEPT:()。
第5题:
All of the following classes of errors are logged in the error report EXCEPT().
第6题:
You wish to enable an audit policy for all database users, except SYS, SYSTEM, and SCOTT.You issue the following statements:SQL> AUDIT POLICY ORA_DATABASE_PARAMETER EXCEPT SYS;SQL> AUDIT POLICY ORA_DATABASE_PARAMETER EXCEPT SYSTEM;SQL> AUDIT POLICY ORA_DATABASE_PARAMETER EXCEPT SCOTT;For which database users is the audit policy now active?()
A. All users except SYS
B. All users except SCOTT
C. All users except sys and SCOTT
D. All users except sys, system, and SCOTT
第7题:
All of the following comprise the Performance Toolbox EXCEPT:()
第8题:
A language change is inevitable
B language change is abrupt
C language change is universal
D language change is extensive
第9题:
All of the following services are controlled by inetd EXCEPT:()。
第10题:
You wish to enable an audit policy for all database users, except SYS, SYSTEM, and SCOTT.You issue the following statements: SQL> AUDIT POLICY ORA_DATABASE_PARAMETER EXCEPT SYS;SQL> AUDIT POLICY ORA_DATABASE_PARAMETER EXCEPT SYSTEM; SQL> AUDIT POLICY ORA_DATABASE_PARAMETER EXCEPT SCOTT; For which database users is the audit policy now active?()