公安工作的一项重要任务就是打击。通过打击，揭露犯罪分子的犯罪事实，使犯罪分子受到相应

掌跖角化一牙周破坏综合征的临床表现不包括（）

A.皮损及牙周病变常在4岁前共同出现

B.患儿智力及身体发育异常

C.乳牙萌出后即有深牙周袋

D.恒牙萌出后按序发生牙周破坏

E.手掌、足底、膝部及肘部局限性的过度角化

阅读下面的短文，并根据短文后的要求答题(请注意问题后字数要求)。

Giving gifts is not a normal part of Britain business culture．Indeed，British business colleagues are qoite likely to feel embarrassed to receive any gift at all．The only exception would be at the conclusion of a desl when it might be appropriate to give a unique souvenir to mark the occasion. Such items might be gold，silver，or porcelain with a suitable inscriptiop．A-gain，to avoid embarrassment on the part of the recipient，the object must be restrained, tastefuI，and not too expensive．

Small gifts such as a lpen Or a book would be suitable gifts of genuine gratitude，and flowers or wine suffice to thank junior colleagues for their services．

Ahernatively，it will often be appreciated if you invite your hosts，or others yoU wish to thank，out for a meal or tO the theatre．

It is always good form to buy a round of drinks for your colleagues after work．This is also the most common way of celebrating someone's birthday．

Business gifts are never exchanged at Christmas but it may be appropriate to send a card，particularly as an．expression of thanks to your business associates but also as a means of maintaining valuable contacts．Bear in mind that the UK postal services was founded at about the same time as the old railways so ensure that your cards are mailed in good time．

If you are invited to a British home，it is standard practice to bring wine，flowers or chocolate for your hosts．The usual European warnings apply when giving flowers：no red roses or white lilies．

If you know that you are going to stay with a family，it is a good idea to bring something             ．If you are unprepared，then your time in your host's house should allow you to think of something they would really appreciate even if you have to mail it from home on your return．

小题1:What's the best title of the passage?(within 8 words)

小题2:How do colleagues often celebrate each other's birthday in Britain based on the passage?(within 15 words)

小题3:Fill in the black in the last paragraph with proper words．(within 5 words)

小题4:Is it always appropriate to bring flowers when you visit a British home?Why?(within 15words)

小题5:Translate the underlined sentence in Paragraph 1 into Chinese．

物品无菌无毒，达到卫生检疫的标准，是餐饮部达到令人放心的清洁卫生的唯一标准。

在“国内通货膨胀与国际收支赤字”时期，政府的宏观经济政策组合应为（）。

A.财政政策紧缩，货币政策放松

B.财政政策不变，货币政策紧缩

C.财政政策紧缩，货币政策紧缩

D.财政政策放松，货币政策放松

下列物质中，既是酸又是碱的是（）。

A、HCl

B、NH4+

C、H2O

D、PO43-