炉201瓦斯管线装有(),以防回火。

题型:填空题

问题:

炉201瓦斯管线装有(),以防回火。

考点:催化裂化装置操作工催化裂化反应岗与离心机岗催化裂化反应岗与离心机岗题库
题型:填空题

营养性巨幼细胞性贫血的主要精神神经症状及体征有()

A.表情呆滞,嗜睡,智力动作发育落后,甚至退步

B.哭时泪少,不易出汗

C.头、肢体震颤

D.感觉异常,膝反射减弱

E.腹壁反射及提睾反射消失

题型:填空题

累计增长量与其相应的各个逐期增长量的关系表现为()。

A.累计增长量等于相应各个逐期增长量之和

B.累计增长量等于相应各个逐期增长量之积

C.累计增长量等于相应各个逐期增长量之差

D.累计增长量等于逐期发展水平减100%

题型:填空题

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

题型:填空题

問題7 次の文の(  )に入れるのに最もよいものを、1、2、3、4から一つ選びなさい。

わたしたちが旅館に着くと、従業員たちが笑顔で「ようこそ(   )。」とあいさつしてくれた。

A.お越しくださいました

B.お伺いしました

C.お呼びいただきました

D.お迎えしました

题型:填空题

在执行审计业务时,环论委托人是谁,注册会计师均有权查阅有关财务会计资料和文件,向有关单位或个人进行调查和核实。 ( )

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