试题源程序文件清单如下：
//main.cpp
#include＜iostrcam.h＞
class vehicle
private:
int MaxSpeed;
int Weight;
public:
//**********found**********
vehicle(int maxspecd,int weight): (1)
～vehiclc();
int getMaxSpeed()return MaxSpeed;
int getWeight()return Weight;
:
//**********found**********
class hicycle: (2) public vehicle
pnvate:
int Height;
public:
bicycle(int maxspeed ,int weight,int height):vehicle( maxspeed ,weight), Height( height)
int getHeight()return Height;;
;
//**********found**********
class motorcar: (3) public vehicle
private:
int SeatNum:
public:
motorcar( int maxspeed,int weight,int sealnum):vehicle( maxspeed, weight), SeatNum( seatnum)
int getSeatNum()return SeatNum;;
;
//**********found**********
class motorcycle: (4)
public:
motorcycle( int maxspeed ,int weight,int height):
vehicle( maxspeed ,weight), bicycle( maxspeed, weight, height), motorcar( maxspeed, weight,1)
;
void main()
motorcycle a(80,150,100);
cout＜＜a. getMaxSpeed()＜＜endl;
cout＜＜a. getWeight()＜＜endl;
cout＜＜a. getHeight()＜＜endl;
cout＜＜a. getSeatNum()＜＜endl;

下列收入确认中，符合现行会计规定的有( )。

A．与商品收入无关的安装劳务在资产负债表日根据安装的完工进度确认收入

B．销售商品部分和提供劳务部分不能够单独计量的，应当全部作为销售商品处理

C．销售商品部分和提供劳务部分不能够单独计量的，应当全部作为劳务收入处理

D．有确凿证据表明售后回购交易满足销售商品收入确认条件时销售商品应按售价确认收入