由于基层管理者权利有限，因此最好不发表个人看法，专心做好技术工作就行了。

Jet lag is back on the agenda for business travelers, especially as long-haul international traffic picks up again.

There is endless advice online about jet lag. Drugs are frequently mentioned, and a recent favorite is Nuvigil, used to treat excessive sleepiness. Nuvigil’s manufacturer, Cephablon, has so far not succeeded in obtaining government approval for its plan to market the drug as a remedy forjet lag.

But the approach I hear most often from long-haul travelers involves diet and preparation. " Why would you take a pill that your body then has to shake off " said Lynne Waller Scanlon, the author, with Charles F. Ehret, of Overcoming Jet Lag, which was a best seller in the mid-1980s but went out of print until she revised and republished it last year under a snappier title, The Cure for Jet Lag.

The book lays out a treatment system for jet lag based on pre-trip diet and conditioning to reset the body’s internal clock. The book suggests resetting the body clock so that it will be in sync with the time at the destination. One to three days before a trip, the authors suggest low-calorie meals. In flight, avoid or strictly limit alcohol, and use coffee or tea to persuade the body clock that it’s daytime. If it’s morning after flying all night, resist sleep and " flood your eyes with daylight " , they suggest.

While all long-haul travel can cause normal fatigue, travel across time zones causes the body to react with the most pronounced effects of jet lag, including disorientation and a general sense of discomfort.

In the last few years, the global airlines have put more emphasis on accommodating the need for in-flight sleep—at least in the business and first—class cabins, where international airlines earn most of their revenue. But at the same time, international airlines also promote extensive in-flight entertainment selections, as well as high-end menus, including quality wine lists, in premium classes. Indulging in these would seem to work against dietary treatment to combat jet lag. But Ms. Scanlon says recovery is nevertheless attainable.

" What do you do if you can’t implement this program ahead of the trip, or if you’ve blown it and had a complete debauch on the plane " she said, " Well, when you get off that plane, you get on the program right away. It may not be perfect, but you will feel much, much better.

According to Paragraph 5 and 6, which of the following statements is TRUE（）

A. Effects of jet lag after travels across time zones are most serious and obvious

B. Effects of jet lag are a sense of discomfort and the loss oforientation

C. Things have improved in recent years because the global airlines have emphasized on meeting the need for in-flight sleep

D. Enjoying the in-flight entertainment and high-quality food will make it impossible to recover from jet lag

投照上前牙时，应使()

A．听鼻线与地面平行

B．前牙的唇侧面与地面垂直

C．听口线与地面平行

D．听眶线与地面平行

E．咬合平面与地面平行

可能提示HIV感染的特征包括

A．原因不明的高热、液汗、体重减轻

B．不易治愈的感染、软组织损伤

C．不能解释的淋巴结病

D．长期慢性腹泻

E．以上均是其特征

计算问答题：李某受聘于一家技术咨询服务公司，每月领取税后工资3600元，公司每月按规定代缴其个人所得税。（1）2014年6月1日，公司与任职8年的李某解除了聘用合同，取得一次性补偿金120000元（该公司所在地上年度职工平均工资为20000元）。李某认为，自己取得的上述补偿金为补偿性质的收入，不应该缴纳个人所得税。（2）2014年6月8日，李某从外单位取得不含增值税的技术咨询报酬50000元，将其中16000元通过国家机关捐赠给贫困地区，李某计算其个人应缴纳的个人所得税是5440元［（50000-16000）×（1-20%）×20%］。（3）2014年6月1日～12月31日，将自有住房按市场价格出租给个人居住，月租金2000元。在不考虑其他税费的情况下，李某认为应纳的个人所得税1680元［（2000-800）×20%×7］。（4）2014年8月，与一家证券交易所签订期限为6个月的劳务合同，合同约定李某每月为该交易所的股民讲课四次，每次报酬1000元，李某认为每月应缴纳个人所得税为160元［（1000-800）×20%×4］。要求：结合个人所得税法的规定，分项指出李某计算的个人所得税错误的原因，并计算出正确的应纳税额。

急性阑尾炎的病因