In-line Skating and Injuries

    An increasing number of children are taking up¹ in-line skating²，and it is those new skaters who are most at risk for injuries，according to a statement from an American research institute.

    Some 17.7 million people younger than age 18 participated in the sport in the USin 1996, a 24% increase over the previous year.

    Also in 1996，in-line skating injuries sent 76,000 skaters under the age of 21 to the emergency room³. Inexperienced skaters accounted for 14% of all injuries requiring treatment.

    The most common reasons, for injuries were losing one"s balance due to road debris, being unable to stop，out-of-control speeding，or falls while doing a trick.

    One third of skating injuries are to the wrist, and two thirds of wrist injuries are fractures.

Wearing wrist guards could reduce the number of these injuries by an estimated 87%⁴，according to the AAP.

    Likewise, elbow pads could reduce elbow injuries by 82% , and knee pads could reduce the number of knee injuries by 32% , advise the experts.

    Helmet used by young skaters is required by law inNew YorkandOregon, and the research institute also recommends that⁵ young skaters wear a bicycle helmet or a similar approved sports helmet.

    The age at which children are ready to⁶ use in-line skates depends upon a number of conditions, including the child"s foot size and body strength, general athletic ability and muscle coordination，and the ability to judge traffic and pay attention to the condition of the skating surface ahead, the experts advise.

    The most dangerous skating practice, called “ truck-surfing"，involves skating while holding onto a moving vehicle⁷. Few skaters have fatal injuries, but 31 out of 36 deaths⁸ reported since 1992 involved being knocked down by a motor vehicle, according to data⁹ from the US Consumer Product Safety Commission.

词汇：

inexperienced / ˌɪnɪkˈspɪəriənst/adj.缺乏经验的，不熟练的
helmet / "helmɪt/n.防护帽，帽盔

skate/skeɪt/n.冰鞋，四轮溜冰鞋，旱冰鞋
athletic / æθˈletɪk/adj.运动的，体育的
muscle / "mʌsl/n.肌肉

debris/ ‘deɪbri:/n. 垃圾,碎片
fracture / "fræktʃə(r)/n..骨折，破裂，折断

pad /pæd/n.垫，衬垫，护垫

注释：

1.take up：开始从事某事
2.in-line skating:指在公路等非专门的运动场所滑冰。
3. ... sent 76,000 skaters under the age of 21 to the emergency room.…"使76,000 名 21 岁以下 的滑冰者进了急救室。
4.by an estimated 87% ：据估计为 87%
5.recommend that...:建议；推荐
6.be ready to:准备干某事
7."truck-surfing"，involves skating while holding onto a moving vehicle：滑卡车，指抓住一辆开 着的车滑行。
8.31 out of 36 deaths：36 例死亡中的 31 例
9.data:资料（复数），常用这一复数形式。

According to the last paragraph, bumping with a motor vehicle took up____of the deaths  reported sinee 1992.

A:over 80% B:below 80% C:about 31% D:about 36%

乙公司于2010年1月购入一项无形资产并投入使用，初始入账价值为120万元，预计使用年限为l0年，预计净残值为0，采用直线法摊销。该项无形资产在2011年12月31日进行减值测试时，预计其可收回金额为92万元；2012年12月31日，该项无形资产的预计可收回金额为87万元。假设该项无形资产在计提减值准备后原预计摊销期限和摊销方法不变，则2012年12月31日该项无形资产的账面价值为（）万元。

A:80.5  B:84.5  C:87  D:92

设有两个事务T1、T2有如下调度，产生的不一致性是（）
步骤             T1                T2
1              读A=100
2                                  读A=100
3.            A=A+10写回
4.                                 A=A-10

A:丢失修改  B:不可重复读  C:读脏数据  D:幻影读

Observe that for the programmer，as for chef， the urgency of the patron（顾客）may govern the scheduled completion of the task，but it cannot govern the actual completion.An omelette（煎鸡蛋），promised in two minutes，may appear to be progressing nicely.But when it has not set in two minutes，the customer has two choices-waits or eats it raw.Software customers have had （） choices. 
  Now I do not think software （） have less inherent courage and firmness than chefs，nor than other engineering managers.But false （） to match the patron’s desired date is much more common in our discipline than elsewhere in engineering.It is very （） 
to make a vigorous，plausible，and job risking defense of an estimate that is derived by no quantitative method，supported by little data，and certified chiefly by the hunches of the managers. 
  Clearly two solutions are needed.We need to develop and publicize productivity figures，bug-incidence figures，estimating rules，and so on.The whole profession can only profit from （） such data.Until estimating is on a sounder basis，individual managers will need to stiffen their backbones and defend their estimates with the assurance that their poor hunches are better than wish derived estimates.

Observe that for the programmer，as for chef， the urgency of the patron（顾客）may govern the scheduled completion of the task，but it cannot govern the actual completion.An omelette（煎鸡蛋），promised in two minutes，may appear to be progressing nicely.But when it has not set in two minutes，the customer has two choices-waits or eats it raw.Software customers have had （？） choices. 
  Now I do not think software （） have less inherent courage and firmness than chefs，nor than other engineering managers.But false （） to match the patron’s desired date is much more common in our discipline than elsewhere in engineering.It is very （） 
to make a vigorous，plausible，and job risking defense of an estimate that is derived by no quantitative method，supported by little data，and certified chiefly by the hunches of the managers. 
  Clearly two solutions are needed.We need to develop and publicize productivity figures，bug-incidence figures，estimating rules，and so on.The whole profession can only profit from （） such data.Until estimating is on a sounder basis，individual managers will need to stiffen their backbones and defend their estimates with the assurance that their poor hunches are better than wish derived estimates.

A:no  B:the same  C:other  D:lots of

从所给的四个选项中，选择最合适的一个填入问号处，使之呈现一定规律性：             A                     B                    C                  D                                                          

A:A  B:B  C:C  D:D

从所给的四个选项中，选择最合适的一个填入问号处，使之呈现一定规律性：                                           A                     B                    C                      D

A:A  B:B  C:C  D:D

以下四个图形与其它图有区别的是?                 A                                            B                                             C                                     D

A:如上图所示  B:如上图所示  C:如上图所示  D:如上图所示

把下面的六个图形分为两类，使每一类图形都有各自的共同特征或规律，分类正确的一项是         ①                  ②                  ③                 ④                  ⑤                 ⑥

A:①②⑤，③④⑥  B:①③④，②⑤⑥  C:①③⑤，②④⑥  D:①④⑥，②③⑤

把下面的6个图形分为两类，使每一类图形都有各自的共同特征或规律，分类正确的一项是         ①                 ②                  ③                   ④                 ⑤                ⑥

A:①③⑥，②④⑤  B:①③④，②⑤⑥  C:①③⑤，②④⑥  D:①④⑥，②③⑤