单选题The one pleasure that Einstein ______ his great fame was the ability it gave him to help others.

单选题The Royal Museum contains a ______ of the king's famous declaration.

单选题The ulterior motives of women are impossible to guess.

单选题There is a real possibility that these animals could be frightened, ______a sudden loud noise.

单选题With some men dressing down and some other men flaunting their looks, it is really hard to tell they are gay or ______. . A. straight B. homosexual C. beautiful D. sad

单选题During the opera's most famous aria the tempo chosen by the orchestra's conductor seemed ______, without necessary relation to what had gone before.

单选题Having recently missed out on the Matisse retrospective, which has taken Paris and New York by storm, and on the tour of great paintings from Philadelphia's Barnes collection, London is becoming______in the competition to show blockbuster international art exhibitions.

单选题Investors said they were "surprised and encouraged" by the sentiment, although other shareholders seemed ______ to having Prosser in the role.

单选题Compared to other species, only human beings are ______of speech.

单选题It's true that the old road is less direct and a bit longer. We won't take the new one,______, because we don't feel as safe on it.

单选题______she realized it was too late to go home.

单选题G. B Shaw wondered how parents could wait until their anger cooled in order to ______ their children in cold blood.

单选题At first she accused me of being a political fanatic, but she soon came round to ______ that my ideas were not so ridiculous as she had supposed.

单选题A dog cares deeply, which way your body is leaning. Forward or backward? Forward can be seen as aggressive; backward—even a quarter of an inch—means nonthreatening. It means you"ve relinquished what ethologists call an "intention movement" to proceed forward. Cook your head, even slightly, to the side, and a dog is disarmed. Look at him straight on and he"ll read is like a red flag. Standing straight, with your shoulders squared rather that slumped, can mean the difference between whether your dog obeys a command or ignores it. Breathing evenly and deeply, rather than holding your breath can mean the difference between defusing a tense situation and igniting it. "I think they are looking at our eyes and where our eyes look like," the ethologist Patricia McConnell, who teaches at the University of Wisconsin, Madison, says, " A rounded eye with a dilated pupil is a sign of high arousal and aggression in a dog. I believe they pay a tremendous amount of attention to how relaxed our face is and how relaxed our facial muscles are, because that"s big cue for them with each other. Is the jaw relaxed? Is the mouth slightly open? And then the arms. They pay a tremendous amount of attention to where our arms go. " In the book The Other End of the Leash, McConnell decodes one of the most common of all human-dog interactions, the meeting between two leashed animals in a walk. To us, it"s about one dog sizing up another. To her, it"s about two dogs sizing up each other after first sizing up their respective owners. The owners " are often anxious about how well the dogs will get along," she writes, and if you watch them instead of the dogs, you"ll often notice that the humans will hold their breath and round their eyes and mouths in an "on alert" expression. Since these behaviors are expressions of offensive aggression in a canine culture, I suspect the humans are unwittingly signaling tension. If you exaggerate this by tightening the leash, as many owners do, you can actually cause the dogs to attack each other. Think of it: the dogs are in a tense social encounter, surrounded by support from their own pack, with the humans forming a tense, staring, breathless circle around them. I don"t know how many times I"ve seen dogs shift their eyes toward their owner"s frozen faces and then launch growling at the other dog.

单选题Bacteria A lived in the soil play B a vital role in C recycling the carbon and nitrogen D needed by plants.

单选题A of the many machines B invented in the late nineteenth century, none had C a great impact D on the United States economy than the automobile.

单选题______your timely advice, I would never have known how to go about the work.

单选题______ all cherry trees are very attractive when in bloom, some species with inferior fruit are cultivated especially for their flowers.

单选题I believe reserves of coal here ______ to last for fifty years.

单选题Mr. Brown's condition looks very serious and it is doubtful if he will A. pull back B. pull up C. pull through D. pull out