单选题What does the word "blunder" mean in this passage?

单选题That will be _______ useful reference book in my research.

单选题 'It seems that Joan arrived late for the conference.' The sentence means that

单选题Molly has always been a(n) ______ child; she becomes ill easily.

单选题 Honeybee populations declined by 13.6% over the winter, according to a survey of beekeepers across England. Losses were most severe in the north-east, where the survey recorded a loss rate of 17.1%. Experts worry that the declines will affect plant productivity. There are also concerns that the declines, along with drought conditions in some area, will mean less English honey this year. Martin Smith, president of the British Beekeepers Association, which carried out the survey, said: 'If this was measured against similar losses in livestock, it would be seen as disastrous and there would be great concern on the knock-on impact of food prices.' Beekeepers are puzzled by the decline because the cold winter and early spring should have favoured bees. They stay 'clustered' tightly in their hives when it is cold and dry, saving energy for spring foraging when the temperature rises about 12℃. However, there is good news that the rate of colony loss has slowed. Four years ago, one in three hives was wiped out. Beekeepers suspect that poor nutrition is a likely cause of weakness in adult bees that makes them succumb to diseases spread by a parasitic mite. 'The varroa mite is the number one reason why people lose bees, so the government needs to increase research to cure diseases caused by varroa,' said Smith. 'But a colony that has a good source of pollen and nectar will go into winter more strongly and better able to fend off disease.' The association is calling on everyone who has a garden, small, to plant bee-friendly plants this summer. 'It is really important that there are flowering nectar-rich plants around in August, September and October to provide the nutrition that's needed so the bees can top up their stores of honey in the hive to see them through winter,' said Smith. A campaign being launched next week to save all bees, spearheaded by Sam Roddick and Neal's Yard Remedies, pins the blame for the decline on pesticide. It will start a petition to hand to Downing Street in October to ban the use of a class of pesticides that has been implicated in bee deaths across the world. Roddick said, 'These neonicotinoid pesticides penetrate the plant and indiscriminately attack the nervous system of insects that feed off them, disorientating bees, impairing their foraging ability and weakening their immune system, causing bee Aids. On current evidence, Italy, Germany and Slovenia have banned some varieties. In the UK, it's up to the people to show the government that if there is any doubt that they are contributing to bee deaths, we need to ban them.' A spokesman for the government's National Bee Unit said: 'The UK has a robust system for assessing risks from pesticides and all evidence shows neonicotinoids do not pose an unacceptable risk when products are used correctly, but we will not hesitate to act if presented with any new evidence.'

单选题Japan bombed Pearl Harbor in 1941. The United States was mad at the Japanese so they made many Japanese-Americans leave their homes. They were put in camps with barbed wire around the outside of the camps. Many Japanese-American young men were called into the army. Some of them joined the US Military Intelligence Service or MIS. The MIS was a secret group that fought the Japanese soldiers. This secret group translated important maps and papers. They questioned Japanese prisoners. Another task they did was to translate diaries written in Japanese. Sometimes Japanese soldiers hid in caves to hide from the Americans. The MIS would try to get the scared soldiers to leave the caves. This was known as "cave flushing." Some of the soldiers would give up and leave the caves. Other Japanese would jump to their deaths. The MIS never got awards for their efforts until the year 2000. Then they were rewarded for their brave acts in World War II. It took almost sixty years for them to be honored. Gayle Yamada has made a film about the brave Japanese-American MIS. The film is called "Uncommon Courage" and is a true story. Hopefully, Yamada's film and the movie, "Pearl Harbor," will not cause people to hate Japanese-Americans or any other race.

单选题Tony is very disappointed ______ the results of the exam.A. forB. towardC. onD. with

单选题We all know that, ______, the situation will get worse.

单选题You should be able to______right from wrong.

单选题The degree of economic growth is an ______ of the level of living.

单选题To stop snacking while watching television, people should keep their hands busy by sewing, painting, working crossword puzzles, and so forth. Over time, watching TV becomes a cue for engaging in an activity other than snacking. What method is used in this example?

单选题Mr. Carson thought he was entitled to more assistance from the government.

单选题With the bridge ______, there was nothing for it but to swim across it.

单选题I love Madonnas songs very much

单选题The price of meat is already down ______ from what it was a year ago.

单选题The mayor was asked to______his speech in order to allow his audience to raise questions.

单选题She watched him ______ all the handles and gears in his automobile until she thought she could run it herself.

单选题What does the word deteriorated mean7 (in paragraph 2 )