工程项目咨询综合评价法所采用的理论依据不包括( )。A．基于经验的综合评价方法 B

In many places in China，________ bicycle is still ________ popular means of transportation.

A．a；the

B．/；a

C．the；a

D．the；the

下列动物中，学习能力最强的是[ ]

A．蜜蜂

B．小白鼠

C．蚯蚓

D．鲨鱼

在测定电能表基本误差时，如果在某一负载下两次测得误差的平均值等于（）基本误差限，应该再测两次，取这两次和前两次测得误差的平均值作为电能表的基本误差。

A.80～120%

B.60～100%

C.90～110%

D.60～120%

阅读理解。

     BEIJING, Feb. 10 (Xinhua) -China's economic planning agency Thursday announced a rise in

minimum rice purchase prices this year to encourage farmers to grow more grain.

     A statement on the National Development and Reform Commission (NDRC) website said the

government would continue the policy of minimum purchase prices in major rice-growing regions in

2011.

     The rises in the minimum rice purchase price had been approved by the State Council, China's

Cabinet, said the statement. 

     The purchase prices for japonica rice will rise 21.9 percent to 128 yuan (19.4 U.S. dollars) per

50 kilograms, while prices for early and middle-late rice will increase 9.7 percent and 10.3 percent to

102 yuan and 107 yuan per 50 kg respectively.

     Rice and wheat are two major grain crops in China.

     The State Council pledged Wednesday to step up efforts to boost grain production as drought

continues to wreak havoc in north China's wheat growing regions.

     China's main wheat-growing regions, including Shandong, Henan, Hebei, Anhui, Shanxi, Shaanxi,

Gansu and Jiangsu provinces, have been plagued by drought since October last year.

     Drought has affected about 7.73 million hectares, or 42.4 percent, of the total winter wheat crop

area in the country's eight key producing provinces, the Ministry of Agriculture said Wednesday.

     China's grain output rose 2.9 percent last year to 546.41 million tons, marking the seventh

consecutive year of growth.  

1. When was this news probably written?

A. In 2011  

B.  In  2010  

C. In February,2011  

D. On Wednesday, 2011

2. What is the purchase price for japonica rice before it wise according to the passage?

A.105 yuan per 50 kilograms    

B. 128 yuan per 50 kilograms  

C. 102 yuan per 50 kilograms    

D. 107 yuan per 50 kilograms  

3. What is the meaning of the underlined word in the fourth paragraph?

A. completely  

B. honorably  

C. separately  

D. exactly

4. Which of the following sentences is true according to the passage.

A. A raised purchase price will encourage farmers to grow more rice.

B. The plan hasn't been approved by the State Council, China's Cabinet.

C. Drought continues to hit the wheat growing regions in the north of China.

D. There are 8 grain producing provinces affected by the drought.

5. Which may be the headline of this news?

A. China's minimum rice purchase prices raised to boost production

B. A Steady rice purchase prices to ensure rice production

C. The Chinese government pays more attention on rice production

D. China's grain output steadily increases

有一只电影录音用电容传声器，灵敏度为10mV/Pa，用dB表示为多少？