《灵枢·百病始生》所言的“虚邪”是指（） A.正气虚弱 B.致病性不强的邪气 C.四

（2x+3）（3-2x）=______．

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 4 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

crowded 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 dessert, 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.

     SelfCatering Accommodation in Private Homes

     Accommodation on a roomonly 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 longstay 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．hosts 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 live 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 Paragraph 3?

A．Zone 4 is more crowded than Zone 2.

B．The business centre of London is in Zone 1.

C．Hosts dislike travelling to the city centre.

D．Accommodation in the city centre is not provided.

4．According to the passage, what does Continental Breakfast include?

A．Dessert and coffee.

B．Fruit and vegetables.

C．Bread and fruit juice.

D．Cereal and cold meat.

下列征象提示骨软骨瘤恶变的是（）

A.软骨帽内钙化

B.肿瘤较大，压迫邻近骨骼

C.瘤体出现骨皮质或边缘部骨质破坏

D.瘤体有宽基底蒂与骨相连

E.病灶呈分叶状

抗拉强度计算公式（）

A.Fm/S0

B.πd2/4

C.ab

D.（Lu-L0）/L0×100%

简述会展简报与展商服务资料编制的要求？