单选题A ______ refers to an animal that is born from its mother"s body, not from an egg, and drinks its mother"s milk as a baby.

单选题I ______ to the meeting on time, but I had a flat tire on the way.

单选题the symphony, no one in the audience spoke.

单选题When he was a post office clerk, secretaries were better paid because ______.

单选题To our disappointment, the guide also only has a slight ______ with Italian.

单选题The French pianist who had been praised very highly ______ to be a great disappointment.

单选题 能源安全 能源安全同世界经济的稳定发展和各国人民的福祉息息相关。在当前国际金融危机背景下，维护全球能源安全对于有效应对国际金融危机冲击、推动世界经济全面复苏和长远发展具有重要意义。国际社会应互利合作，维护能源市场的正常秩序。同时，各国应改善能源结构，大力发展清洁和可再生能源(renewable energy)，在相关领域积极开展国际合作。

单选题 A herd of Kashmir goats have invaded a Welsh seaside town after the coronavirus lockdown (冠状病毒造成的封锁) left the streets deserted. The animals, who normally roam free on a nearby headland standing out into the Irish Sea, have instead wandered into Llandudno where they have spent the past three days feasting on garden hedges and flowers. Like other countries affected by the global coronavirus crisis, Britain has imposed strict social distancing measures including shop and school closures, and the authorities are asking everyone to stay at home except for essential travel. With the streets of Llandudno unnaturally quiet, the goats have been free to wander the streets undisturbed. Town councillor Carol Marubbi said the goats didn't normally come into town unless the weather was awful, but on this occasion she said they probably realised something unusual was going on because there were so few people around. 'I think they're probably feeling a bit lonely and they have come down to have a look around,' she told Reuters by telephone. Kashmir goats have lived on the headland near Llandudno since the days of Queen Victoria, when the species became popular in Britain due to a fashion for shawls made from their soft cashmere wool. Marubbi said the herd of about 150 goats, some of whom had kids in February, were a well-known local attraction and most residents did not mind having their hedges eaten by them.' I'm a big fan,' she said. 'I love them because they are characters.' With millions of people stuck at home sharing light-hearted content online to alleviate the boredom of the lockdown, images and video of the goats wandering around the streets were a hit on social media. 'Just love this. Looks like they are definitely in charge,' wrote Sue Foster, a former primary school head teacher. Andrew Stuart, a video producer for the Manchester Evening News, has been posting videos of the furry adventurers online and they are attracting hundreds of thousands of viewers. 'There's no one around at the moment, because of the lockdown, so they take their chances and go as far as they can. And they are going further and further into the town,' Smart told the Associated Press from his parents' pub in Llandudno, where he is waiting out the pandemic (流行病). His videos show the goats munching on (用力咀嚼) people's neatly trimmed hedges and trees in front yards and wandering casually empty streets as if they own the place. 'One of the videos shows that they were on a narrow side street and I was on the other side and they were scared of me. They were moving slowly and carefully away from me. So they are still scared of people,' Stuart said.

单选题The new dictionary is on the top shelf, out of ______ ． A．reach B．sight C．touch D．order

单选题Scientists are______certain that there is a cancer-inhibiting agent in the blood of the shark.

单选题He practiced ______ on her and managed to get $ 2, 000.

单选题From the article, we can deduce that the author ______.

单选题According to Olson, what is the reason for the poor economies of Third World countries?

单选题We are regretful ______ that the goods you have ordered are out of stock.

单选题If you buy more than ten, they will knock 20 pence off ______. A. a price B. price C. the price D. prices

单选题Every year gray whales migrate from the Bering Sea in Alaska to the Baja Peninsula in Mexico. Eleven gray whales have died in the San Francisco Bay in the last three weeks. No one knows why the whales are dying. Last year 270 whales died along the whales’ migration route. Many people think starvation is the cause. This year the dead whales seem to have more blubber (fat) on them. Twenty years ago, the gray whale was listed as an endangered species. Some scientists think that the larger number of whales makes it hard to find enough food. More whales create more pressure on the food supply, a supply that some scientists say may have dwindled as a result of the warm waters of El Nino. Most of the whales have been dead for many days before they are found and studied. This makes it hard to find the reason for death. 65 whales have been seen in the San Francisco Bay Area this year compared to 17 last year. The whales could be dying from many diseases, but it may be over-population.

单选题The microscope can ______ the object 100 times. [A] magnify [B] increase [C] develop [D] multiply

单选题How many people outside cities go into cities to look for jobs each day?

单选题This room ______ in the building.

单选题The school authority ______ against students' smoking both in the classrooms and at home.