问题 单项选择题

男性,60岁,冠心病,左心室扩大,快速走路或上四楼时感心悸、气短,超声心动图示左心室射血分数30%,该患者的心功能分级是().

A.Ⅰ级

B.Ⅱ级

C.Ⅲ级

D.Ⅳ级

E.介于Ⅲ级和Ⅳ级之间

答案

参考答案:B

解析:按美国心脏病学会(NYHA)心功能分级标准,该患者左心室射血分数降低明显,但目前仅在较重的体力活动后出现症状,属于体力活动轻度受限,心功能诊断以Ⅱ级较为合理。

阅读理解

阅读理解

     Children of all ages love birthday parties at the Staten Island Zoo. Where else can you invite real

party animals to join in the fun?

     Who is invited?

     Parties at the Staten Island Zoo are designed for children who are turning 4 years old and older, with

a maximum group size of 15 children and 4 adults. Along with your human guests,2-3 live animals will

also be invited into your party room. No need for more introductions. By the end of your party, our

teachers will make sure everyone is well familiar with their new scaly(有鳞的),feathery or furry friends.

    What is included?

     Each party lasts an hour and a half (two hours if pizza is included) and includes live animal demonstration,games or stories,and animal skills. Each member will receive a goodie bag to take home for fun. Besides, birthday invitations will be given to you for giving to your guests.

     Birthday party themes

     Choose from four different themes:    

     Animal Tracks

     Discover different types of animal's feet and their purpose. Track some animals and then make a take

home plaster mold(石膏模型).

    African Savannah

     Join in the fun at exploring the mysteries of the African Savannah. Learn about favorite foods of the

Savannah's people and make an animal mask to enjoy the fun. 

    Tropical Rainforest

    Listen to the sounds of the jungle and find where the animals live. Create a colorful rainforest bird.

     Barnyard Friends

     Stories, games, activities and crafts will all focus on the differences between wild and domestic animals.  Make a small bookmark to use at home.

     Costs

     Pizza,ice cream cake,juice and party (includes cutlery, paper plates, cups and napkins) --- $370

Staten Island Zoo members/$400 non. Members.

     Party only --- $250 Staten Island Zoo members/$275 non. Members

1. What's special about the birthday parties at the Staten Island Zoo?

A. There are 19 people in one party at least.

B. Parties are intended for those who are just 4 years old.

C. It is necessary to introduce the strangers at the parties.

D. Live animals will take part in the birthday parties.

2. If you choose a theme of Tropical Rainforest,what kind of works of art can you make?

A. A take-home plaster mold.  

B. A colorful rainforest bird.

C. An animal mask.

D. A small bookmark to use at home.

3. A non-member who only plans to hold a party at the Staten Island Zoo should pay______.

A. $250   

 B. $275    

C. $370

D. $400

4. What can we learn from the passage?

A. All birthday parties last one and a half hours.

B. We should buy birthday invitations for our guest at the zoo.

C. Animals will make a performance at the party.

D. Any party member will be given a bag to store rubbish at the party.

单项选择题