基坑开挖与支护施工应进行量测监控，监测项目、监测控制值应根据设计要求及基坑侧壁安全等

房地产业属于（）。

A.第一产业

B.第二产业

C.第三产业

D.第四产业

采用结构化分析方法进行系统分析时，在了解了企业的基本情况后要进行的首要工作应该是进行对系统的______。

A．目标分析

B．环境分析

C．业务分析

D．效益分析

阅读理解

     On a PC (个人电脑), having to fill out a form and type in a credit card number to buy something

is only mildly annoying. On a cellphone, it could make you want to skip the purchase entirely.

     This is why investors, startups (初创企业) and major corporations are pouring money into services

that make it easier to use cellphones to buy goods and transfer money. The aim is to turn phones into

virtual credit cards or checkbooks, enabling the kind of clickandbuy commerce and online banking that

people have come to expect on their PCs. But shrinking down (缩小) those services presents serious

challenges.

     The services must work on many different phones and through many cellphone service providers,

which usually control the billing relationships with customers. That adds complexity to the already tricky

business of safely and securely transferring funds among financial institutions and merchants.

     Mobile payment systems have been tried before, with only modest success. Driving a new flurry (一

阵兴奋) of deal making, industry analysts and executives say, is the success of the iPhone, BlackBerry

and other sophisticated (尖端的) devices. These phones make complex interactions easier.

     Now the race is on to develop new payment systems-and to get several percentage points in fees

from each transaction. They're seeing that returns could be so huge. Obopay, a startup that lets people

transmit money to one another via text message, raised $ 35 million from Nokia's investment. Also, a

mobile payments startup called Boku announced that it had received $ 13 million in venture capital

financing.

     When people can use their phone numbers to make a purchase, they are 10 times as likely to follow

through on a transaction as when they have to type in credit card and billing information, said David

Marcus, chief executive of a startup called Zong.

     Mobile payment companies also need to get cooperation from merchants, which must add a payment

option to their mobile sites or applications.

     But the potential opportunity to get fees from the growing number of mobile transactions is too__

juicy__to__pass__up,__despite the risks, said an analyst with IDC Financial Insights, a market research

company.

1. From the passage, we should face ________ great difficulties while purchasing through

    cellphones instead of PCs. 

A. one                

B. two

C. three                

D. four

2. According to the passage, using phones to make a purchase is ________.

A. expensive            

B. convenient

C. troublesome          

D. impossible

3. What does the underlined phrase "too juicy to pass up" in the last paragraph probably mean?

A. Too profitable to ignore.                            

B. Too difficult to seize.

C. Too heavy to lift.                                    

D. Too unsafe to handle.

4. What would be the best title for the passage? 

A. The Benefit of Purchasing via Cellphone

B. The Great Risks on Payments via Cellphone

C. How to Deal with Payments via Cellphone

D. Investors Bet on Payments via Cellphone

启蒙运动中，提出“三权分立”学说的法国思想家是（）。

A、伏尔泰

B、卢俊

C、孟德斯鸠

D、狄德罗

农业大户贷款中采用联保方式的，联保小组的已婚自然人应提供配偶同意其代表本农户家庭参加联保小组的承诺书。