Muscles are stringy bundles of fibers varying from one five-thousandth of an inch to about three inches. They have three unique characteristics: they can become shorter and thicker; they can stretch to their original position. Under a high-powered microscope, muscle tissue is seen as long, slender cells with a grainy texture like wood.
More than half of a person's body is composed of muscle fibers, most of which involuntary-in other words, work without conscious direction. The voluntary muscles, those that we move consciously to perform. particular action, number more than five hundred. Women have only 60 to 70 percent as much muscle as men for their body mass. That is why an average woman can't lift as much, throw as far, or hit as hard as an average man.
Intelligent use of the muscles means that ______.
A.one always knows what his muscles are doing
B.one performs simple actions without working
C.one's muscles are used only to the extent necessary for each action they perform
D.one improves muscular action consciously
第1题
类Test定义如下,将下列()方法插入③行处是不合法的。①publicclassTest{②publicfloatMethod(floata,floatb){}③④}
A.publicfloatMethod(floata,floatb,floatc){}
B.pubicfloatMethod(floatc,floatd){}
C.publicintMethod(inta,intb){}
D.pivatefloatMethod(inta,intb,intc){}
第2题
类Test定义如下,将下列______方法插入③行处是不合法的。 ()①public class Test{②public float Method(float a,float b){}③④}
A.public float Method(float a,float b,float c){}
B.public float Method(float c,float d){}
C.public int Method(int a,int b){}
D.private float Method(int a,int b,int c){}
第3题
类Test定义如下,将下列哪个方法插入③行处是不合法的()?
① public class Test{
② public float Method(float a,float B) { }
③ ______
④ }
A.public float Method(float a,float b,float C) { }
B.public float Method(float c,float d){ }
C.public int Method(int a,int B) { }private float Method(int a,int b,int C) { }
D.private float Method(int a,int b,int C) { }
第4题
如下代码定义了一个类Test: class Test { private int y; Test (int x) { y:x; } }现在为Test 类生成一个对象,正确的语句是()。
A.Test t = new Test();
B.Test t=new Test(10, 20);
C.Test t;
D.Test t=new Test(10);
第5题
有如下类定义: class Test { public: Test(){a=0;c=0;} //① int f(int a)const {this->a=a;} //② static int g(){return a;} //③ void h(int b){Test::b=b;}; //④ private: int a; static int b; const int c; }; int Test::b=0; 在标注号码的行中,能被正确编译的是
A.①
B.②
C.③
D.④
第6题
有如下类定义: class Test { public: Test{a=0;c=0;}//① int f(im A.const{this->a=a;}//② static int g{return a;f//③ void h(int B.{Test:.b=b;};//④ private: int a; static int b; const int C; }; int Test::b=0: 在标注号码的行中,能被正确编译的是()。
A.①
B.②
C.③
D.④
第7题
下列代码中,将引起一个编译错误的行是()。 1)public class Test{ 2) int m,n; 3) public Test(){} 4) public Test(int a){m=a;} 5) public static void main(String args[]){ 6) Test t1,t2; 7) int j,k; 8) j=0;k=0; 9) t1=new Test(); 10) t2=new Test(j,k); 11) } 12)}
A.第3行
B.第5行
C.第6行
D.第10行
第8题
有如下类定义: class Test { int x_,y_; public: Test ():a_(0) ,b_(0) {} Test(int a,int b=0) :a_(a),b_(b){} }; 若执行语句 Test x(2) ,y[3],*z[4]; 则Test类的构造函数被调用的次数是()。
A.2次
B.3次
C.4次
D.5次
第9题
A、Test x = new Test(); 数据添加到文件中;
B、Test <int> x = new Test <int> ();
C、Test <object> x = new Test<object>();
D、Test <t> x = new Test <t> ();
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