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。

德克萨斯州大约5000名被判犯有非暴力罪行的罪犯没有去坐牢，而是去参加社区服务。这些人按照他们的技能为社区服务，包括从擦地板到做研究等不同工作。始于1949年的这种社会服务计划，由于几个月以前醉酒司机惩罚条例的实施而得以迅速发展。下面各项均发生在20世纪70年代，其中哪个最有可能促进了1979年社区服务项目的产生？
A．该州暴力犯罪人数的减少。
B．该州犯法人员的增多。
C．该州审判员平均年龄的逐渐降低。
D．该州监狱的拥挤不堪。

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

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

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

以下诸项结论，都是根据1998年度西单繁星商厦各个职能部收到的雇员报销单据综合得出的。在此项综合统计做出后，有的职能部又收到了雇员补交上来的报销单据。以下哪项结论不可能被补交报销单据这一新的事实所推翻？
A．超级市场部仅有14个雇员交了报销单据，报销了至少8700元。
B．公关部最多只有3个雇员交了报销单据，报销总额不多于2600元。
C．后勤部至少有8个雇员交了报销单据，报销总额为5234元。
D．会计部至少有4个雇员交了报销单据，报销了至少2500元。