基于以下题干：
F、G、H、I、J、K、L、M、N九个学生的期末考试成绩分为三组。成绩最高的三个为第1组，成绩最低的三个为第3组；其余的为第2组。没有两个人的成绩完全相同。
I的成绩高于G。
G的成绩分别高于J和K。
J的成绩高于M。
M的成绩高于H。
H的成绩高于N。
K的成绩分别高于F和L。
第1组可能有多少种不同的组合？
A．1。
B．2。
C．3。
D．4。
某家私人公交公司通过增加班次、降低票价、开辟新线路等方式，吸引了顾客，增加了利润。为了继续这—经营方向，该公司决定更换旧型汽车，换上新型大客车，包括双层客车。该公司的上述计划假设了以下各项，除了______。
A．在该公司经营的区域内，客流量将有所增加
B．更换汽车的投入费用将在预期的利润中得到补偿
C．新汽车在质量、效能等方面足以保证公司获得预期的利润
D．驾驶新汽车将不比驾驶旧汽车更复杂、更困难
Hurricanes are violent storms that cause millions of dollars in property damage and take many lives. They can be extremely dangerous, and too often people underestimate their fury.
Hurricanes normally originate as a small area of thunderstorms over the Atlantic Ocean west of the Cape Verde Islands during August or September. For several days, the area of the storm increases and the air pressure falls slowly. A center of low pressure forms, and winds begin to whirl around it. It is blown westward, increasing in size and strength.
Hurricane hunters then fly out to the storm in order to determine its size and intensity and to track its direction. They drop instruments for recording temperature, air pressure, and humidity（湿度), into the storm. They also look at the size of waves on the ocean, the clouds, and the eye of the storm. The eye is a region of relative calm and clear skies in the center of the hurricane. People often lose their lives by leaving shelter when the eye has arrived, only to be caught in tremendous winds again when the eye has passed.
Once the forecasters have determined that it is likely the hurricane will reach shore, they issue a hurricane watch for a large, general area that may be in the path of the storm. Later, when the probable point of landfall is clearer, they will issue a hurricane warning for a somewhat more limited area. People in these areas are wise to stock up on nonperishable foods, flash light and radio batteries, candles, and other items they may need if electricity and water are not available after the stoma. They should also try to hurricane-proof their houses by bringing in light-weight furniture and other items from outside and covering windows. People living in low-lying areas are wise to evacuate their houses because of the storm surge, which is a large rush of water that may come ashore with the storm. Hurricanes generally lose power slowly while traveling over land, but many move out to sea, gather up force again, and return to land. As they move toward the north, they generally lose their identity as hurricanes.
The eye of the hurricane is______.
A．the powerful center of the storm
B．the part that determines its direction
C．the relatively calm center of the storm
D．the center of low pressure
For most kinds of activities, a large group of people can accomplish more and have more fun than one person alone. For example, politicians, businessmen, workers, and【B1】criminals know that they must join organizations in order to be【B2】. Since there is usually strength in numbers, labor unions have a more【B3】influence on wages and company policy than individual workers【B4】. A person may also belong to social clubs and athletic teams【B5】he or she can meet other people who are interested in the same activities.【B6】you have a hobby, such as playing chess, collecting coins or stamps, or playing a musical instrument, you should join a club which has【B7】meetings to talk about your activity; the other【B8】will help you learn more about it. Of course, a group must be well【B9】, or k might be a failure. All the members should work together on projects and choose good leaders to.【B10】their activities. In this way, the organization will benefit everyone in it.
【B1】
A．still
B．even
C．somehow
D．however
如果F乘坐1号艇，以下哪项可能为真？
A．G和K乘坐3号艇。
B．G和R乘坐3号艇。
C．J和S乘坐2号艇。
D．Q和S乘坐2号艇。
名为小麦农场主联盟的政治行动委员会，只凭放在9、10和11月份的《农庄报道》——一个小麦农场主月刊上的呼吁捐款的广告吸引了70%的捐款者。小麦农场主联盟的主席为增加捐款者的人数，决定在《农庄报道》的每一期上登广告。她预计，增加在《农庄报道》上的广告的结果是捐献者至少会两倍于目前的人数；下面哪项如果正确，将最有力地支持该主席的预测？
A．9、10和11月份的广告被少于《农庄报道》读者中愿意为小麦农场主联盟捐献的1/3的人注意到。
B．种小麦的农场主过去一直在夏末收割，出售完冬小麦后还银行贷款。
C．《农庄报道》的读者中，大部分对小麦农场主联盟有足够兴趣并愿意捐款的人已经对广告做出了反应。
D．大多数在一年中捐款给小麦农场主联盟的人，这样做是对《农庄报道》的广告做出的反应。