根据句意和首字母提示填空，完成下列句子。

1. The car is worth m_______ of dollars.

2. His uncle is carrying out a r_______ on the cause of cancer.

3. Don't draw on the p_______ walls.

4. You don't understand me in the s_______.

5. There are p_______ of eggs in the basket.

6. How is your son g_______ along with his English?

7. The dove (鸽子) r_______ peace.

8.  My throat is p_______ sore, and I am coughing very much.

9.  I'm sorry to b_______ you, but can you tell me how to do it?

10. You should not be too c_______ of success.

锅炉结渣，指灰渣在高温下粘结于受热面、炉墙、炉排之上并越积越多的现象。结渣使锅炉( )。

A．受热面吸热能力减弱，降低了锅炉的出力和效率

B．受热面吸热能力增加，降低了锅炉的出力和效率

C．受热面吸热能力减弱，提高了锅炉的出力和效率

D．受热面吸热能力增加，提高了锅炉的出力和效率