急性溃疡坏死性龈炎的临床特征（）。 A．牙龈红肿、牙松动、牙周流脓 B．牙龈 * * 呈刀

阅读理解。

     Many years before the United States was founded (建立), Americans had already invented barbecues.

But the first barbecues, in fact,were the invention of the Taine Indians of Haiti, who dried their meat on raised

frames (架子) of sticks over fires. Spanish explorers spelled the Taine word as barbecue, and as time passed,

English settlers along the Atlantic coast had their own barbecues.

     One summer day in 1773, Benjamin Lynda, a citizen of Massachusetts, wrote in his diary, "Fair and hot;

Browne; hack overset." That is, on a bright and hot day he went to the Brownes to attend a barbecue, and his

carriage (马车) fell over. It shows that the barbecue had its social occasion by that time. Large animals would

be roasted whole on frames over hot fires, and neighbors would be invited to dinner.

     In later centuries, as settlers moved to the west, the barbecue went along with it, reaching an especially

large size in Texas, where a pit (坑) for fuels (燃料) such as tree branches might be over ten feet deep. Today,

the barbecue grills (烧烤架) which are fueled by charcoal (木炭) or electricity are likely to be small and easy to

move, and can cook only parts of an animal at a time, but people still have barbecues out of doors and always

invite their neighbors or friends over.

1. Who invented the barbecues first in history?

A. American people.

B. Taine Indians.

C. Spanish explorers.

D. English settlers.

2. The second paragraph mainly tells us that the barbecue ___________.

A. is only held on a hot sunny day

B. welcomes people who keep diaries

C. is held both indoors and outdoors

D. has its social occasion for over 200 years

3. The underlined expression "social occasion" can be best translated into ___________.

A. 社交功能

B. 社会福利

C. 社会地位

D. 社会背景

4. The following are all the barbecue ways EXCEPT ___________.

A. drying meat on raised frames of sticks over fires

B. roasting a whole animal over a pit full of burning tree branches

C. cooking parts of animals over fires on grills fueled by charcoal

D. heating meat in the bright and hot daylight

一个凸多边形各个内角的度数组成公差为5°的等差数列，且最小内角为120°，则此多边形为 ______边形．

外包行应根据外包相关制度规定或外包业务性质、风险程度等向（）履行报批或报备手续。

A.总行

B.一级分行

C.二级分行

D.上级行

2009年1月1日，甲公司购入B公司30％的普通股权，对B公司有重大影响，甲公司支付买价640万元，同时支付相关税费4万元，购入的B公司股权准备长期持有。B公司2009年1月1日的所有者权益的账面价值为2000万元，公允价值为2200万元。甲公司长期股权投资的入账价值为（）万元。

A.600

B.640

C.644

D.660

对证人证言的审查判断从哪几方面进行？