老张年老体弱，无力拼种承包的田地，只得让儿子小张耕种．根据我国《老年 * * 益保障法》，

方差分析

肺动脉瓣口血流的多谱勒频谱在肺动脉高压时的变化，下述哪一项是错误的()

A．频谱上升支陡峭

B．频谱波峰前移

C．频谱幅度明显增大

D．频谱波形似匕首形状

E．频谱持续时间短

股东最重要的义务是()。

A.缴纳出资义务

B.遵守公司章程

C.忠诚义务

D.以出资额为限对公司承担责任

Welcome to Adventure land!

Everyone loves Adventure land! The Parks and Exhibitions were built for you to explore(探索), enjoy, and admire their wonders. Every visit will be an unforgettable experience. You will go away enriched, longing to come back. What are you going to do this time?

The Travel Pavilion

Explore places you have never been to before, and experience different ways of life. Visit the Amazon jungle(丛林)village, the Turkish market, the Thai floating market, the Berber mountain house and others. Talk to the people there who will tell you about their lives and things they make. You can try making a carpet, making nets, fishing…

The Future Tower

This exhibition shows how progress will touch our lives. It allows us to look into the future and explore the cities of the next century and the way we’ll be living then. Spend some time in our space station and climb into our simulator(模拟装置)for the Journey to Mars!

The Nature Park

This is not really one park but several.

In the Safari Park you can drive among African animals in one of our Range Cruisers: see lions, giraffes, elephants in the wild. Move on to the Ocean Park to watch the dolphins and whales. And then there is still the Aviary to see…

The Pyramid

This is the center of Adventure land. Run out of film, need some postcards and stamps? For all these things and many more, visit our underground shopping center. Come here for information and ideas too.

小题1:The Travel Pavilion is built to help visitors _______.

A．learn how to make things such as fishing nets

B．realize the importance of travelling

C．learn something about different places in the world

D．become familiar with mountain countries小题2:If you are interested in knowing about what people’s life will be, you may visit _______.

A．the Safari Park

B．the Travel Pavilion

C．the Future Tower

D．the Pyramid小题3:If you want to get a souvenir（纪念品）to take home, where will you most likely go?

A．The Pyramid.

B．The Future Tower.

C． The Nature Park.

D．The Travel Pavilion.

精则养神 柔则养筋