海船船员考试
单选题The apparent wind’s speed can be zero only when two conditions are present. One condition is that the true wind（）.A must be from dead aheadB speed must be zeroC must be from dead asternD must be on the beam
题目
must be from dead ahead
speed must be zero
must be from dead astern
must be on the beam
参考答案和解析
相似问题和答案
第1题：
下列语句能给数组赋值而不使用for循环的是
A．myArray{[1]="One";[2]="Two";[3]="Three";}
B．String s[5]=new String[]{"Zero", "One", "Two", "There", "Four"};
C．String s[]=new String[]{"Zero", "One", "Two", "There", "Four"};
D．String s[]=new String[]=|"Zero", "One", "Two", "There", "Four"};
解析：A)、D)语法不正确，B)中s[5]的形式只能通过for循环的格式进行赋值，而不能直接赋值。C)中表达式左侧的“[]”说明现在定义一个数组，不需要指明数组长度，而表达式右侧“[]”在后面直接紧跟初始内容时也是不需要指定数组大小的，数组大小直接由初值长度决定。
第2题：
The velocity of the apparent wind can be more than the true wind，and come from the same direction，if certain conditions are present．One condition is that the ______．
A.Ship's speed must be less than the true wind velocity
B.True wind must be from dead astern
C.True wind velocity must be faster than the ship's speed
D.True wind must be from dead ahead
第3题：
A. The backup as copy can only be taken to disk
B. The backup as copy can only be taken to tape
C. Backup can be performed only when the instance is shutdown
D. Backup will constitute all used and unused blocks in the database
第4题：
Which two statements are true when using the configure exclusive CLI command?（）
- A、Multiple users can enter configuration mode and have their own private configuration.
- B、When a user commits, only the user's changes are committed.
- C、A message indicates which other users are in configuration mode and what portion of the configuration they are editing.
- D、Only a single user can edit the configuration.
正确答案:B,D
第5题：
Apparent wind speed blowing across a vessel under tow can be measured by a(n)______．
A.barometer
B.wind vane
C.anemometer
D.Thermometer
视风是通过安装在船上的风速仪测得的。
第6题：
下列语句能给数组赋值，而不使用for循环的是
A．myArray{[1]="One"；[2]="Two"；[3]="Three"；}
B．String s[5]=new String[] {"Zero","One","Two","Three","Four"}；
C．String s[]=new String[] {"Zero","One","Two","Three","Four"}；
D．String s[]=new String[]= {"Zero","One","Two","Three","Four"}；
解析：字符串数组赋初值的方法有两种，一种是如选项C一样初始化。另外一种是先为每个数组元素分配引用空间，再为每个数组元素分配空间并赋初值。例如还可做如下赋值：
string s[]=new String[5]；
s[0]="Zero"；
s[1]="One"；
s[2]="Two"；
s[3]="Three"；
s[4]="Four"；
第7题：
An anemometer on a moving vessel measures ______.
A.apparent wind speed only
B.true wind speed and true wind direction
C.true wind speed only
D.apparent wind speed and true wind direction
在运动的船上的风速计仅测量视风（相对风）速。
第8题：
A. The backup as copy can only be taken to disk
B. The backup as copy can only be taken to tape
C. Backup can be performed only when the instance is shutdown
D. Backup will constitute all used and unused blocks in the database
第9题：
In which situation do the Rules require both vessels to change course ?______.
A.Two power-driven vessels meeting head-on
B.Two power-driven vessels crossing when it is apparent to the stand-on vessel that the give-way vessel is not taking appropriate action
C.Two sailing vessels crossing with the wind on the same side
D.All of the above
在那种情况，规则规定的两船都应该转向？两机动船对遇时。
第10题：
On an existing two-node cluster， the system is configured with RAID5 SSA as the shared disk. When adding a new node to the cluster， what must be taken into consideration？（）
- A、 Nothing，SSA can support a maximum of 8 initiators per loop.
- B、 The RAID5 implementation on SSA will only support two initiators per loop.
- C、 SSA can only support four initiators per lop when using the fat write option.
- D、 The RAID implementation can be used with three initiators only if the fast write cache option is used on all adapters.
正确答案:B