______is the address of.a variable or a variable in which the address of another variable is stored.

A．Director

B．Pointer

C．Array

D．Record

[单选题]is the address of a variable or a variable in which the address of another variable is stored.A．DirectorB．PointerC．ArrayD．Record

[单选题]A variable pitch propeller is made （） a boss with separate blades mounted into it.A . ofB . up ofC . fromD . out

[名词解释] address地址

[主观题]C．ost，variable可变成本

[单选题]temp=’this is a temped variable’；echo foo${temp}上述命令执行的结果为（）A . fooB . foo$tempC . foo’this is a temped variable’D . foothis is a temped variable

[名词解释] 连续型变量(continuous variable)

[名词解释] 变异减速(variable deceleration，VD)

[名词解释] Cost，variable可变成本

[名词解释] 可变成本（Variable cost）

[主观题]可变投入品（Variable input）