影响企业人力资源活动的法律因素有( )。A．(A) 户籍制度 B．(B) 劳动力市场

下列属于X线发生装置部分的是（）

A.诊视床

B.天轨

C.立柱

D.高压发生器

E.准直器

容易犯错误是我们人类无法避免的一个弱点，不管科技发展到什么程度，事故总是会在不经意间发生。懂得这个道理，我们就可以“______”，只有这样，或许我们才能______应对一切可能出现的麻烦。 填入画横线部分最恰当的一项是( )。

A．未卜先知 巧妙

B．未雨绸缪 从容

C．先发制人 完美

D．稳操胜券 主动

阅读理解。

     Hello-Hello, a creative mobile language learning company, announced the launch of Hello-Hello

World, a free application for the iPad that helps people learn a new language by connecting them with

native speakers through social networking.

     The application lets users complete language lessons and connect with Hello-Hello's global community of language learners with members in almost 100 countries to help each other in the learning process.

Hello-Hello World is available in 11 different languages and allows users to submit both oral and writing

exercises for their friends and Hello-Hello's language experts to review. Users are also able to provide

written feedback on their friend's exercises directly from their mobile devices.

     "The most effective way to learn a new language is through total immersion (沉浸),"said Sarah Gontijo, founder and CEO of Hello-Hello. "However, not everyone has the opportunity to live in another country. Hello-Hello World brings the convenience of connecting with native speakers anytime, from anywhere.

This can help users not only learn the language but also understand the culture."

     Hello-Hello World lets users synchronize (使同步) their information with the Hello-Hello Cloud and

then access the content from any mobile device or computer. The application is first being released for the

ipad and will become available on a variety of platforms, including the iPhone, Android and Blackberry.

     The application arrives at a time when tablet (平板电脑) computing is driving the creation of new

educational tools, such as Hell-Hello World. Many schools and colleges are finding ways to adapt mobile

technology for classroom learning. "The market is hot for such pioneering in education and social

networking," said Gontijo. "Hell-Hello promises to be the invention that will set the ball rolling and bring

innovation to an industry that has seen little change over the years."

     Technology research firm Gartner predicts that app-store downloads worldwide will double to $17.7

billion as the year closes, and that app-income will hit $15.1 billion, tripling the impact of last year's sales. App-downloads are expected to continue to jump to 185 billion by 2014, at which point worldwide

tablet sales are projected to surpass (超过) 208 million units.

1. With the launch of Hello-Hello world, users can           .

A. talk to any foreigners in the world  

B. speak any foreign languages fluently

C. practice pronouncing words correctly  

D. communicate with native speakers anytime

2. Which mobile device is Hello-Hello World being released for now?

A. The iPhone.  

B. The ipad.

C. Android.  

D. Blackberry.

3. What does Sarah Gontijo think it takes to learn a new language effectively?

A. Hard work and practice.

B. Cultural understanding.  

C. A language learning environment.  

D. Modern mobile technology.

4. It is implied in the passage that           .

A. there is a potential market for this mobile technology  

B. mobile technology is being used for classroom learning  

C. students do not know how mobile technology can be used  

D. it is difficult for Hello-Hello to change the mobile industry

通常情况下，名义利率扣除______即可视为实际利率。

地球科学的特点。