倾倒综合征

During the past 15 years, the most important component of executive pay packages, and the one .most responsible for the large increase in the level of such compensation, has been stock-option grants. The increased use of option grants was justified as a way to align executives’ interests with shareholders’. For various tax, accounting, and regulatory reasons, stock-option grants have largely comprised "at-the-money options": rights to purchase shares at an "exercise price" equal to the company’s stock price on the grant date. In such at-the-money options, the selection of the grant date for awarding options determines the options’ exercise price and thus can have a significant effect on their value.
Earlier research by financial economists on backdating practices focused on the extent to which the company’s stock price went up abnormally after the grant date, My colleagues and I focused instead on how a grant-date’s price ranked in the distribution of stock prices during the month of the grant. Studying the universe of about 19,000 at-the-money, unscheduled grants awarded to public companies’ CEOs during the decade 1996-2005, we found a clear relation between the likelihood of a day’s being selected as a grant date for awarding options, and the rank of the day’s stock price within the price distribution of the month: a day was most likely to be chosen if the stock price was at the lowest level of the month, second most likely to be chosen if the price was at the second-lowest level, and so forth. There is an especially large incidence of "lucky grants" (defined as grants awarded on days on which the stock price was at the lowest level of the month): 12 percent of all CEO option grants were lucky grants, while only 4 percent were awarded at the highest price of the month.
The passage of the Sarbanes-Oxley Act in August 2002 required firms to report grants within two days of any award. Most firms complied with this requirement, but more than 20 percent of grants continued to be reported after a long delay. Thus, the legislation could be expected to reduce but not eliminate backdating. The patterns of CEO luck are consistent with this expectation: the percentage of grants that were lucky was a high 15 percent before enactment of the law, and declined to a lower, but still abnormally high, level of 8 percent afterwards.
Altogether, we estimate that about 1,150 CEO stock-option grants owed their financially advantageous status to opportunistic timing rather than to mere luck. This practice was spread over a significant number of CEOs and firms: we estimate that about 850 CEOs ( about 10 percent) and about 720 firms ( about 12 percent) received or provided such lucky grants. In addition, we estimate that about 550 additional grants at the second-lowest or third-lowest price of the month owed their status to opportunistic timing.
The cases that have come under scrutiny thus far have led to a widespread impression that opportunistic timing has been primarily concentrated in "new economy" firms. But while the frequency of lucky grants has been somewhat higher in such firms, more than 80 percent of the opportunistically timed grants have been awarded in other sectors. Indeed, there is a significantly higher-than-normal incidence of lucky grants in each of the economy’s 12 industries.

The result of the author’s study shows that

A．stock options are more likely to be awarded when prices are low.

B．there is a vague relationship between stock options and grant price.

C．there is a clear relationship between lucky grants and lucky dates.

D．stock options are only awarded when the price is at the lowest.

合成氨反应N₂（g）+3H₂（g）

2NH₃（g）△H＜0 具有重要的意义．

（1）该反应的化学平衡常数表达式是K=______．

（2）该反应的化学平衡常数K与温度T的关系如下表所示：

T/K	473	573	673	…
K	4.4×10-2	K1	K2	…

其中，K₁______ K₂（填“＞”、“=”或“＜”）．

女性，22岁。自幼因麻疹后咳喘迁延不愈。近年来发作趋于频繁，程度亦趋严重。1周前感冒后哮喘发作一直未能缓解而住院。体检：患者神志淡漠，呼吸困难，呈端坐位，吸氧下紫绀不明显。两肺满布哮鸣音，心率126次／分，律齐，有奇脉。

为对该患者病情作出客观估价，应立即做下列哪项检查（）。

A.动脉血气分析

B.血电解质测定

C.痰细菌培养

D.过敏原皮肤试验

E.血清ISE测定

免疫缺陷病的特点不包括（）

A.反复感染

B.肿瘤

C.自身免疫病

D.遗传倾向

E.临床表现典型

咱们中国人打听时间，爱问“几点钟了”提到时间，常用“钟点”这个词。“钟”和“点”，当什么意思讲呢说来很有趣。
古汉语中，“钟”，当酒器、量器讲。汉语中有“酒锺”，后来写作“酒盅”。也可以当乐器讲，“钟”和鼓、竽、瑟并在一起演奏乐曲。秦始皇曾收缴天下兵器，在咸阳融铸成钟，作敲击的乐器用。
钟，东汉许慎在《说文解字》里解释：“乐器也，秋分之音，物种成。”说得多清楚，是秋天万物成熟时演奏的乐曲。在这里，“钟”实际已表示了时间：秋天时节。成语中，有个“钟鸣鼎食”，形容用餐的豪华、气派。其实，这儿的“钟”也有吃饭“钟点”的意思。咱们古代城市都在市中心建有钟鼓楼，敲钟击鼓，是报时间用的。庙里也敲钟表示僧人作功课和作息的时间，所以留下了“姑苏城外寒山寺，夜半钟声到客船”的美丽诗句，也有一句“当一天和尚撞一天钟”的俏皮话。
点，它的本义是斑点。“用毛笔点个点儿、掉雨点儿”中，“点”都是小、持续时间短的意思。我国早就使用“点”计时，也就是铜壶滴漏，把一夜分成五更，一更再分成五点，标明时刻。“点”，本身也是一种金属乐器，曲尺形，敲击时，传声很远。北京有“九门八点一口钟”的话儿，用“点”和“钟”的声音，告诉人们启、闭城门的钟点。
“钟”和“点”都有表示时间的意思，后来合在一起组成“钟点”和“点钟”，联袂代表时间了。
钟，从读音上通“终”，表示一段时间的完结。像“送终”“寿终”表示生命结束；“年终”，一年结束。
细想想，挺有意思的吧

作者认为，作为乐器的“钟”可以表示时间，是因为______。

A．钟可以吃饭，表示吃饭时间
B．钟可以使秋天万物成熟，表示秋天
C．钟可以用来敲击，向人们报时
D．钟可以使人们喜欢当和尚，忘记时间