2型糖尿病的发病机制是()A.胰岛B细胞破坏,胰岛素绝对不足 B.胰岛B细胞自身免疫

题型:单项选择题

问题:

2型糖尿病的发病机制是()

A.胰岛B细胞破坏,胰岛素绝对不足

B.胰岛B细胞自身免疫反应性损伤

C.胰岛素抵抗和胰岛素分泌缺陷

D.胰岛B细胞遗传性缺陷

E.胰岛素拮抗激素增多

考点:广西临床住院医师规范化培训内科学内科学题库
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根据商品编码归类总规则,由30%的牛肉(品目号02.02)、30%的猪肉(品目号02.03)、30%的羊肉(品目号02.04)和10%的鸡肉(品目号02.07)组成的肉馅,应归类的品目号是( )。

A.02.02

B.02.03

C.02.04

D.02.07

题型:单项选择题

《马关条约》是继《南京条约》以来最严重的不平等条约,它大大加深了中国的民族危机。

_________________________________________________

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如图,倾斜的传送带向下匀加速运转,传送带与其上的物体保持相对静止。那么关于传送带与物体间静摩擦力的方向,以下判断正确的是

A.物体所受摩擦力为零

B.物体所受摩擦力方向沿传送带向上

C.物体所受摩擦力方向沿传送带向下

D.上述三种情况都有可能出现

题型:单项选择题

阅读理解。

     Passport Control

     If you are arriving at London Heathrow Airport and are not transferring (转换) another flight outside

Britain or Northern Ireland, you must pass through Passport Control and Customs (海关) immediately

after leaving your plane. If you are not British or a citizen of the European Community, you must fill out

a special form before your passport is examined. This form is called a landing card and should be given

to you during the flight to London. After landing, follow the ARRIVALS signs. Make sure you are in the

right channel when you reach Passport Control. There is one channel for holders of European Community

passports, and a second channel marked

     "Other Passports".

      Baggage Reclaim (行李领取) Area

     After passing through Passport Control, follow the signs to the Baggage Reclaim Area. If you have

luggage which was carried in the aircraft along with other cargo, it will be delivered to you in the Baggage

Reclaim Area. Look for the sign with your flight number. If you have only hand luggage, go directly through

the Baggage Reclaim Area to Customs.

     Customs

     All passengers must pass through Customs after Passport Control. There is a choice of two channels,

Green and Red. If you have nothing to declare, go through the Green Channel. If you are not sure about

your Duty Free allowances (免税额), or if you have something to declare, go through the Red Channel.

Information about Duty Free allowances can be found on special notice-boards in the Baggage Reclaim

Area. You should study this information carefully whether you are going through the Red Channel or not.

Please note that if you go through the Green Channel, you may be stopped and asked to open you luggage

for inspection.

  

1. When a Chinese traveler is arriving at Heathrow Airport for a trip in London, he must ______.

A. fill out a landing card first

B. pass through Customs before Passport Control

C. walk through the Red Channel

D. immediately reclaim his baggage after landing

2. Those who are not sure about their Duty Free allowances _______.

A. can check the information in the Baggage Reclaim Area

B. need to go through the Green Channel

C. will be asked to open the luggage for inspection

D. can do as those who have nothing to declare

3. Which of the following travelers DO NOT have to go through Passport Control and Customs?

A. People traveling straight to London.

B. Holders of European Community passports.

C. Passengers transferring to a city in Ireland.

D. Passengers only with some hand luggage.

题型:单项选择题

允许速度160㎞/h≥υmax>120㎞/h正线,75kg/m钢轨轨头侧面磨耗超过()判重伤。

A、10mm

B、12mm

C、14mm

D、16mm

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