列出中国人腕骨骨化中心出现时间标准。

论述石油化工企业噪音的基本特征。

（2010）房地产经纪人因承诺不当，可能引起的风险包括（）。

A.伪造客户签名风险

B.房源保管风险

C.签署服务协议风险

D.产权瑕疵风险

E.产权转移风险

阅读理解。

      根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项

为多余选项。

     Here are some easy steps for you to stay safe and secure on the Internet.

        1   Never give out your full name , address and phone number, unless it is a safe site or it is

a well- known site.

     Protect your money. Do not give out your card information unless it is a secure site. You can

tell if the site is safe by looking at the lower part of your screen.    2  If it is locked, the site is secure.

"Unlocked" means that you should not give a card number.

     Don't believe "Get Rich Quick!" If it sounds too good to be true- it is! If you get an e-mail that

says you can make thousands of dollars in a few days, it isn't true. Most likely it will cost you in the

end.   3      

      A good virus scan(杀毒软件).Update your virus scan.   4   When you buy a virus scan, it may

have been on the shelves for months, so you need to update it frequently.

        5  Do not open e-mail attachments(附件)that are programs. Receiving these programs in e-mail

is harmless, but opening and running them can be dangerous.

A. There is a small lock.

B. Stay away from these offers!

C. New viruses come out daily.

D. There are always some unsafe sites.

E. Keep your main e-mail address private.

F. Don't give out personal information.

G. Protect yourself from dangerous e-mail viruses.

人力资源管理中进行培训的方法中，角色扮演法与行为模拟法的区别在于行为模拟法（）

A.趣味性强

B.事先对受训者进行了指导

C.培训效果好

D.互动性强

在FPL电报中，ETA指（）。

A.飞机预计落地时间

B.对IFR飞行而言是飞机到达机场的IAF的时间，对VFR而言是飞机到达着陆机场上空的时间

C.对IFR飞行而言是飞机过近台的时间，对VFR而言是飞机到达着陆机场上空的时间

D.对IFR飞行而言是飞机过近台的时间，对VFR而言是飞机实际落地时间