关于醛固酮瘤，下列说法不正确的是（） A.多为双侧腺瘤 B.直径大多介于1～2cm，

静态图像采集常采用256×256的字模式，一幅图像需要储存字节数是（）

A.4KB

B.32KB

C.64KB

D.128KB

E.256KB

日常生活中的下列变化，其中一种与其余三种类别不同的是

A．冰雪消融

B．葡萄酿酒

C．粮食霉变

D．烟花爆炸

阅读理解。

     Homestay provides English language students with the opportunity to speak English outside the classroom

and the experience of being part of a British home.

     What to Expect

     The host will provide accommodation and meals. Rooms will be cleaned and bedcovers changed at least

once a week. You will be given the house key and the host is there to offer help and advice as well as to take

an interest in your physical and mental health.

     Accommodation Zones

     Homestays are located in London mainly in Zones 2,3 and of the transport system. Most hosts do not live

in the town centre as much of central London is commercial and not residential (居住的). Zones 3 and 4 often

offer larger accommodation in a less crowned area. It is very convenient to travel in London by underground. 

     Meal Plans Available

     ◇Continental Breakfast

     ◇Breakfast and Dinner

     ◇Breakfast, Packed Lunch and Dinner

     It's important to note that few English families still provide a traditional cooked breakfast. Your

accommodation includes Continental Breakfast which normally consists of fruit juice, cereal (谷物类食品),

bread and tea or coffee. Cheese, fruit and cold meat are not normally part of a Continental Breakfast in England.

Dinners usually consist of meat or fish with vegetables followed by desert, fruit and coffee.

     Friends

     If you wish to invite a friend over to visit, you must first ask your host's permission. You have no right to

entertain friends in a family home as some families feel it is an invasion of their privacy.

     Self-CateringAccommodation in Private Homes

     Accommodation on a room-only basis includes shared kitchen and bathroom facilities and often a main

living room. This kind of accommodation offers an independent lifestyle and is more suitable for the long-stay

student. However, it does not provide the same family atmosphere as an ordinary homestay and may not benefit

those who need to practise English at home quite as much.

1. The passage is probably written for _____.

A. host willing to receive foreign students

B. foreigners hoping to build British culture

C. travellers planning to visit families in London

D. English learners applying to like in English homes

2. Which of the following will the host provide?

A. Room cleaning.

B. Medical care.

C. Free transport.

D. Physical training.

3. What can be inferred from Paragraph3?

A. Zone 4 is more crowded than Zone 2.

B. The business centre of London is in Zone.

C. Hosts dislike travelling to the city centre.

D. It is not very convenient to travel in London by underground.

4. According to the passage. What does continental Breakfast include?

A. Dessert and coffee

B. Fruit and vegetables.

C. bread and fruit juice.

D. Centre and cold meat.

5. Why do some people choose self-catering accommodation?

A. To experience a warmer family atmosphere.

B. To enrich their knowledge of English.

C. To entertain friends as they like.

D. To enjoy much more freedom.

患者女，66岁。反复双膝关节疼痛12年，逐渐加重3年，活动时关节有弹响。体检：双膝关节骨摩擦音（+）.但无明显红肿及压痛，血白细胞5.7×10⁹/L，血沉18mm/第1小时，RF27.6IU/L（正常值范围0～15IU/L）。最可能的诊断是（）

A.骨关节炎

B.类风湿关节炎

C.反应性关节炎

D.强直性脊柱炎

E.系统性红斑狼疮

于先生想购买可转换债券，下列有关可转换债券的说法错误的是( )。

A．可转换债券是公司债券的一种

B．可转债具有债权和期权的双重属性，其持有人可以选择持有债券到期，获取公司还本付息；也可以选择在约定的时间内转换成股票，享受股利分配或资本增值

C．可转换公司债券的固定利息比普通公司债券高

D．如果实现转换，投资者则会获得出售普通股的收入或获得股息收入