单选题The little girl is just learning to walk and she's always ______ over. A. tumbling B. wagging C. waving D. swaying

单选题Harry was ______ by a bee when he was collecting the honey.

单选题I couldn't ______ the lecture at all. It was too difficult for me. A. take on B. take in C. take over D. take upon

单选题______ the weight and the specific gravity of a body, you can calculate its volume.

单选题In that country, hospital doctors don't go sightseeing very often because their work______almost all their time.

单选题Agriculture must, therefore, ______ workers and savings to the new industrialized, urbanized sectors if a modern economy is to be achieved. A. yield B. succumb C. subject D. resort

单选题Which of the following sums up the main idea of this passage?

单选题Unfortunately, the woman's hat ______ my view of the stage. A. blocked up B. obstructed C. prevented D. interfered

单选题______ scientists have observed increased pollution in the water supply. A. Late B. Later C. Latter D. Lately

单选题If I had a car of my own, I______it to your sister yesterday.(2014年厦门大学考博试题)

单选题He had a quarrel with his wife and just ______ her.

单选题When I was still an architecture student, a teacher told me, "We learn more from buildings that fall down than from buildings that stand up." What he meant was that construction is as much the result of experience as of theory. Although structural design follows established formulas, the actual performance of a building is complicated by the passage of time, the behavior of users, the natural elements--and unnatural events. All are difficult to simulate. Buildings, unlike cars, can't be crash-tested. The first important lesson of the World Trade Center collapse is that tall buildings can withstand the impact of a large jetliner. The twin towers were supported by 59 perimeter columns on each side. Although about 30 of these columns, extending from four to six floors, were destroyed in each building by the impact, initially both towers remained standing. Even so, the death toll (代价) was about-2 245 people lost their lives. I was once asked, how tall buildings should be designed given what we'd learned from the World Trade Center collapse. My answer was, "Lower." The question of when a tall building becomes unsafe is easy to answer. Common aerial fire-fighting ladders in use today are 100 feet high and can reach to about the 10th floor; So fires in buildings up to 10 stories high can be fought from the exterior (外部). Fighting fires and evacuating occupants above that height depend on fire stairs. The taller the building, the longer it will take for firefighters to climb to the scene of the fire. So the simple answer to the safety question is "Lower than 10 stories." Then why don't cities impose lower height limits? A 60-story office building does not have six times as much rentable space as a 10-story building. However, all things being equal, such a building will produce four times more revenue and four times more in property taxes. So cutting building heights would mean cutting city budgets. The most important lesson of the World Trade Center collapse is not that we should stop building tall buildings but that we have misjudged their cost. We did the same thing when we underestimated the cost of hurtling along a highway in a steel box at 70 miles per hour. It took many years before seat belts, air hags, radial tires, and antilock brakes became commonplace. At first, cars simply were too slow to warrant concern. Later, manufacturers resisted these expensive devices, arguing that consumers would not pay for safety. Now we do-- willingly.

单选题The page of a newspaper is divided into______.

单选题The gloves were really too small, and it was only by ______ them that I can get them on.

单选题The local authorities realized the need to make______ for elderly people in their housing programs.(2008年北京大学考博试题)

单选题Coach Green allowed John to join the basketball team although, ______, he was not tall enough. A. economically B. technically C. methodically D. intellectually

单选题It was ______ for him to wear a T-shirt at the reception.

单选题______ this coming Thursdag. it will be too late to enroll for the course.