听力原文:W: Hi, Paul, are you ready for your Speech Club presentation this evening?
M: Yeah, I'm going to discuss robots.
W: Robots? You mean those machines that walk and talk like in the movies?
M: No, industrial robots like those used in the automobile and electronic industries.
W: I saw an article about that kind of robots the other day. There were pictures of robots welding cars, but
they certainly didn't look the way I thought robots should look.
M: The robots we usually imagine are made up in science fiction. In industry, robots are designed to do a specific set of operations, such as welding car frames. They are rarely built to resemble humans.
W: Actually, all they need is a kind of brain to give signals, and a mechanism, such as an arm, to carry out instructions, right?
M: Right. Tiny computers become the brain of these robots. The computer sends signals, in the form. of electronic impulses, to move an arm and a claw. The claw is the hand that does particular kinds of work.
W: OK. But we've had machines on assembly lines doing work for people for years. That's what started the industrial revolution, remember?
M: But each of those machines can only perform. a single operation and it takes months to modify them. The new industrial robots can each do a number of tasks. And it's easy to reprogram them to perform. totally different operations. That's one reason why they're becoming so popular.
What kind of robots does the man refer to?
A.Agricultural robots.
B.Industrial robots.
C.Computers.
D.Electrical robots.
第1题
下面程序的运行结果是【 】。
include<iostream.h>
void main()
{
char s[]="9876",*p;
for(p=s;p<s+2;p++)
cout<<p;
}
第2题
下面程序的运行结果是 ______。 #include<iostream.h> class A{ public virtual、~(){ cout<<”call A:: ~A()”<<end1;} }; class B:public A{ B(int i){p=new char[i]:} -B(){ delete[)p; Cout<<”call B:: ~B()”; } }; void main() { A*a=new B(8); Delete a; }
A.call B:: ~B()
B.call B:: ~B()
C.call A:~A()
D.call A::~A()
第3题
下面程序的运行结果是 #include<iostream.h> class base{ protected: int a; public: base(){cout<<"0";} }; class basel:virtual base { public: base1(){cout<<"1";} }; class base2:virtual base{ public:
A.123
B.3120
C.312
D.3012
第4题
下面程序的运行结果是 #include<iostream.h> class base{ protected: int a; public: base(){cout<<"0";} }; class basel:virtual base { public: base1(){cout<<"1";} }; class base2:virtual base{ public:
A.123
B.3120
C.312
D.3012
第5题
下列程序的运行结果是______。
include<iostream.h>
class Base
{
public:
virtual void func(int i){cout<<"class Base:"<<i<<end1;)
};
class Derived: public Base
{
public:
void func(double d){cout<<"class Derived:"<<d<<endl;}
};
void main()
{
Base a,*p=a;
Derived b;
p=&b;
(*p).func(3.3);
}
第6题
下面程序的结果是 #include<iostream.h> class A { int a; public: A():a(1){} void showa(){cout<<a;} }; class B { int a; public: B() :a(2) {}
A.1
B.2
C.3
D.程序有错误
第7题
分析下面程序,该程序的运行结果是()。 #include<iostream.h> class TestClass { public; static int m; TestClass () { m++; } TestClass(int n) { m=n; } static void test() { m++; } }; int TestClass::m=0; void main() { TestClass A; TestClass B(3); A.test(); TestClass::test(); tout<<"m="<<B.m<<end1; }
A. m=3
B.m=4
C.m=5
D.m=6
第8题
下列程序运行结果是 。 #include <iostream.h> class A { public: A() { cout << "A"; } }; class B { public: B() { cout << "B"; } }; class C : public A { public: C() { cout << "C"; } private: B b; }; void main() { C obj; }
第9题
下面程序的运行结果是 #include<iostream.h> class base{ protected: int a; public: base(){cout <<"0";} }; class basel:virtual base{ public: basel () {cout <<"1";} }; class base2:virtual base{ public: base2(){cout <<"2";} }; class derived:public basel,public base2{ public: derived(){cout <<"3";} }; void main() { derived obj; cout <<end1; }
A.123
B.3120
C.312
D.3012
为了保护您的账号安全,请在“上学吧”公众号进行验证,点击“官网服务”-“账号验证”后输入验证码“”完成验证,验证成功后方可继续查看答案!