问题 单项选择题

经初步核算,2009年上半年我国国内生产总值同比增长7.1%,比一季度加快1.0个百分点。其中,第一产业增加值12025亿元,增长3.8%,第二产业增加值70070亿元,增长6.6%,第三产业增加值57767亿元,增长8.3%。上半年,全社会固定资产投资91321亿元,同比增长33.5%,增速比上年同期加快7.2个百分点。其中,城镇固定资产投资78098亿元,增长33.6%,加快6.8个百分点;农村固定资产投资13223亿元,增长32.7%,加快9.5个百分点。上半年,社会消费品零售总额58711亿元,同比增长15.0%。其中,城市消费品零售额39833亿元,增长14.4%,县及县以下消费品零售额18878亿美元,增长16.4%。上半年,进出口总额9461亿美元,同比下降23.5%。其中,出口5215亿美元;进口4246亿美元,贸易顺差同比减少21亿美元。上半年,城镇居民家庭人均总收入9667元,其中,人均可支配收入8856元,同比增长9.8%,在城镇居民家庭人均总收入中,工资性收入6394元,增长11.1%;转移性收入2273元,增长16.0%;经营净收入778元,增长3.9%;财产性收入222元,增长9.1%。农村居民人均现金收入2733元,增长8.1%,其中,工资性收入954元,增长8.4%;家庭经营收入1512元,增长5.5%,财产性收入78元,增长9.9%;转移性收入189元,增长31.4%。

2008年上半年,全社会固定资产投资同比增长( )。

A.40.7%

B.33.5%

C.26.3%

D.24.2%

答案

参考答案:C

解析: 2008年上半年,全社会固定资产投资同比增长33.5%-7.2%=26.3%。本题选C。

单项选择题

Dogs are constantly learning from the reaction of human owners, picking up facial cues and anticipating their owner’s behavior, a new research suggests. The findings, published online in the journal Learning and Behavior, show that dogs essentially are always in training, and help explain how many owners unknowingly teach and reward their dog’s bad behavior.

Research conducted at the University of Florida focused on the role of eye contact and facial cues in influencing canine behavior. Earlier studies have suggested that dogs seem to know when they are being watched and even wait to perform forbidden behavior like digging in the garden when they know their owners aren’t looking. In this study, researchers studied how human cues triggered begging behavior among 35 pet dogs, 18 shelter dogs and 8 wolves raised in captivity. First the animals were taught that the human strangers helping with the experiment were reliable sources of tasty treats. The testers stood close together and called to the animal, and both offered rewards of Spam cubes or Beggin’ Strips treats.

After four rewards, the experiment began. Two testers stood against a fence or wall, about 20 feet apart and with food in their pockets. The dog was held about 20 feet away, equidistant from both testers. In one condition, one tester faced the dog while the other turned her back. In another, a tester held a book near her face, while the other tester held the book in front of her face, as if she were reading. In a third condition, one tester held a bucket near the shoulder, while the other put the bucket over her head, blocking her eyes.

Then, both testers called out to the dogs. All the animals—pet dogs, shelter dogs and wolves—ignored the person whose back was turned and sought food from the person who was looking at them. "The question was, are dogs and wolves responsive to a human’s attentional state" said Monique Udell, an assistant professor of psychology at Flagler College, Fla. But when the testers held books, it was only the domestic dogs who avoided the person who appeared to be reading the book. "In a house where they’re used to people reading books, they are sensitive to those types of cues," said Dr. Udell. Interestingly, in the bucket experiment, the animals, for the most part, were equally likely to seek food from the person with the bucket over her head as the person holding the bucket.

The experiment shows that dogs are tuned into whether humans are paying attention. "Dogs don’t have to read our minds. Dogs read our behavior," said Dr. Udell. Pet owners often get frustrated with bad dog behavior without realizing that they themselves have reinforced it, either by giving the dog a treat when they beg, skipping a bath when they protest or letting them sleep on the bed or couch.

The expression "are tuned into" probably means()

A. be ignorant of

B. be insensitive to

C. be responsive to

D. be oblivious to

单项选择题