海船船员考试
单选题In motorships，there are two main circuits, （）.A one salt water, one fresh waterB one salt water, one fuelC one fresh water, one fuelD one steam, one fuel
题目
one salt water, one fresh water
one salt water, one fuel
one fresh water, one fuel
one steam, one fuel
相似问题和答案
第1题：
What is the main difference between the two parts of the city?.
A. The colour of the buildings.
B. The age of the buildings.
C. The colour of the roofs.
D. The length of the streets.
37．答案为B 此题为推断题。文中第三段指出瓦伦西亚市的新旧两部分的差异，但是没有直接对比建筑的颜色、屋顶的颜色和街道的长度，故选B。
第2题：
有以下程序 main( ) { char *s[ ]={"one","two","three"},*p; p=s[1]; printf("%c,%s\n",*(p+1),s[0]); } 执行后输出结果是
A．n,two
B．t,one
C．w,one
D．o,two
解析：p首先指向s中的第二个字符串(p=s[1])的起始位置，其中输出语句printf的功能是输出p所指向的后一个字符，及数组元素s[0]。
第3题：
有如下程序：
#include
using namespace std;
class ONE
{
public:
virtual void f(){cout<<"l";}
};
class TWO:public ONE
{
public:
TWO(){cout<<"2";}
};
class THREE:public TWO
{
public:
virtual void f(){TWO::f(); cout<<"3";}
};
int main()
{
ONE aa, *p;
TWO bb;
THREE cc;
p = &cc;
p->f();
return 0;
}
执行上面程序的输出是 【 11 】 。
第4题：
A.main lighting circuits
B.motor starting circuits
C.emergency lighting circuit
D.general alarm circuits
第5题：
有如下程序：
include ＜iostream＞
using namespace std;
class ONE
{
public:
virtual void f() { cout ＜＜ "1"; }
};
class TWO: public ONE
{
public:
TWO() { cout ＜＜ "2"; }
};
class THREE: public TWO
{
public:
virtual void f() {TWO::f(); cout ＜＜ "3"; }
};
int main()
{
ONE aa, *p;
TWO bb;
THREE cc;
p=&cc;
P-＞f();
return 0;
}
执行上面程序的输出是【 】。
2213
第6题：
The network layer provides services to the transport layer．It call be based on either virtual circuits or datagrams．In both cases，its main job is（ ）packets from the source to the destination． A．dealing with B．sending C．routing D．receiving
网络层为传输层提供服务，它基于虚电路或数据报方式，其主要工作是对源节点的数据包进行路由选择(routing)，转发到目的节点。
第7题：
A.migrants
B.transformers
C.immigrants
D.emigrants
第8题：
有如下程序：
include ＜iostream＞
using namespaee std；
class ONE{
public：
virtual void f( ){cout＜＜"1"；}
}；
class TWO：public ONE{
public：
TWO( )1 cout＜＜"2"；}
{；
class THREE：public TWO{
public：
virtual void f( )}TWO::f( )；cout＜＜"3"；}
}；
int main( ){
ONE aa，*P；
TWO bb；
THREE cc；
P=&cc；
p-＞f( )；
return 0；
}
程序的输出结果是______。
2213 解析：TWO bb；调用TWO的构造函数打印2；THREE cc；调用继承类TWO的构造函数打印2；p-＞f( )；调用类TREE的函数f( )，先显式调用TWO类的函数f( )，TWO中没有重新定义f( )函数，所以调用TWO的基类ONE的虚函数f( )；打印1，然后再打印3，故答案为2213。
第9题：
There are two main approaches to the study of English words namely()
A、descriptive and prescriptive
B、synchronic and diachronic
C、spoken and written
D、competence and performance
第10题：
Vessels having main engines arranged for air starting are to be provided with at least__.
A.one automatic drain serving both containers
B.two air starting containers of approximately equal size
C.one control air container and one starting air container
D.one additional means of starting the main engine