假定类TEST中重载运算符＜＜，则运算符＜＜在类TEST中正确的声明形式为（ ） A: ostream& operator＜＜(ostream& output, const TEST& obj); B: friend ostream& operator＜＜(ostream& output, const TEST& obj); C: ostream& operator＜＜(const TEST& obj); D: friend ostream& operator＜＜(const TEST& obj);

The -> operator has a higher priority than the increment operator.

What is the indirection operator? A: & B: * C: -> D: .

友元运算obj1>obj2被C++编译器解释为： A: operator>(obj1,obj2) B: >(obj1,obj2) C: obj2.operator>(obj1) D: obj1.operator>(obj2)

运算符重载测验: 为类ABC定义重载运算符“+”，下列哪种定义形式是正确的？（） A: 定义为类ABC的函数成员： void operator +( ){......} B: 定义为类ABC的函数成员： ABC operator +( ABC obj ){......} C: 定义为类ABC的函数成员： ABC operator +( ABC obj1, ABC obj2 ){......} D: 定义为类ABC的友元函数： ABC operator +( ABC obj ){......}

1、In MATLAB, the right division operator (/) and the left division operator (\) are equivalent.

1、In MATLAB, the right division operator (/) and the left division operator () are equivalent. A: 正确 B: 错误

Set X_i=(x_i (1),x_i (2),⋯,x_i (n)) as the behavior sequence of factor X_i, D_1 as the sequence operator, and X_i D_1=(x_i (1)d_1,x_i (2)d_1,⋯,x_i (n)d_1), where x_i (k)d_1=x_i (k)/x_i (1); x_i (1)≠0, k=1,2,⋯,n, then D_1 is A: A. Initial valued operator B: B. Averaging operator C: C. Interval valued operator D: D. Invert operator

下列碳正离子的稳定性顺序是：（ ） A: (1) > (2) > (3) > (4) B: (2) > (4) > (3) > (1) C: (1) > (3) > (2) > (4) D: (2) > (4) > (1) > (3)

>>>x = [1, 2, 1, 1, 2]>>>x.remove(2)语句运行结果正确的是( )。 A: [1, 1, 1, 2] B: [1, 2, 1, 2] C: [1, 2, 1, 1] D: [1, 1, 1]