In the fixed bias circuit, the Q-point current and voltage are a function of ( ), since ( ) is temperature sensitive, Q-point is ( )

有以下程序： #include ＜iostream＞ #include ＜cmath＞ using namespace std； class Distance； class point { public： friend class Distance； Point(int a，int B) { x=a； Y=b； } void Print() { cout＜＜"X= "＜＜X＜＜end1； cout＜＜"Y= "＜＜Y＜＜end1； } private： float X，Y； }； class Distance { public： float Dis(Point &p，Point &q)； }； float Distance :: Dis(Point &p，Point &q) { float result； result=sqrt((p.X-q.X)*(p.X-q.X)+(p.Y-q.Y)*(p.Y-q.Y))； cout＜＜result＜＜end1； retUrn result； } int main() { Point p(10，10)，q(10，30)； Distance d； d．Dis(p，q)； return 0； } 运行后的输出结果是( )。 A: 10 B: 30 C: 0 D: 20

中国大学MOOC: 若有定义typedef char *POINT; POINT p,q[3],*r;则p、q和r分别是字符型的（ ）。

设typedef char *POINT; POINT p,q［3］;,则p和q 分别是字符型的( ) A: 变量、指针变量 B: 变量、二维数组 C: 指针变量、一维数组指针 D: 指针变量、一维指针数组

【填空题】The vertical displacement at point D is ____m.（up to 4 digits after the decimal point "0.0001" ）Suppose upward is positive.(q=3kN/m, a=2m, EI=2X10⁵ kN*m² )【图片】

There are two point-charges<br/>q1<br/>and q2.<br/>The magnitude of electric field force between them is F. If the third<br/>point charge +Q is<br/>introduced, will the force between q1<br/>and q2<br/>be influenced by +Q<br/>&#91; &#93; A: It will not be influenced by +Q B: It will be influenced by +Q

Point A is a distance L to the left of a charge Q. Point B is adistance 3L to the left of point A. If the electric field atpoint A due to charge Q is E, what is the electric field atpoint B?[img=277x49]17da660b2a21250.png[/img] A: E/3 B: E/9 C: E D: 3E E: E/16

A point charge q is placed inside a cavity within a conductor. The conductor is electrically neutral and is isolated . The total charge on the outer surface of the conductor must be ______.

盘点: break point|game point|match point|set point

【单选题】若有语句 int *point,a=4; 和 point=&a; 下面均代表地址的一组选项是 A. a,point,*&a B. &*a,&a,*point C. *&point,*point,&a D. &a,&*point ,point