_江西成考网

The underlined word“rainbow”in the last paragraph refers to____．

• A、the rainbow in the sky
  

• B、the stripes on the pavement
  

• C、something imaginative and fun
  

• D、important lessons learned in childhood

They have produced____they did last year.

• A、twice as much grain as
  

• B、twice more grain as
  

• C、twice as many grain as
  

• D、as twice many grain as

52__________。