句型转换。  

1. My pencil is long. Your pencil is longer. (合并为一句 )    

    Your pencil is _                             mine.  

2. Hong Kong is newer than Beijing. (改为一般疑问句)   

                  Hong Kong _                             Beijing?

3. There are 40 millon people in the city. (对画线部分提问)    

                   the                of the city?

4. Guizhou is in the south of China. (对画线部分提问)  

                                   Guizhou?

5. Lily's room is cleaner than Jim's. (改为一般疑问句) 

                   Lily's room  _                              Jim's?

下面有几个计量误差的定义，其中国际通用定义是（）。

A、含有误差的量值与其真值之差

B、计量器具的示值与实际值之差

C、计量结果减去被计量的（约定）真值