[单项选择]in the meantime, the question facing the business is whether such research is ______ the costs.
A. worth
B. worth of
C. worthy
D. worthwhile

[单项选择]In the meantime, the question facing business is whether such research is （） the costs.
A. worthy
B. worth of
C. worth
D. worthwhile

[单项选择]Question 5

[单项选择]Question 6
A. apprend lire tout age.
B. position est essentielle : allong sur son lit ou sur un canap bien cal dans un fauteuil.
C. enfant doit apprendre non seulement lire, mais aussi, avec la lecture, manier une langue.
D. enfant qui, dès son plus jeune age, manipule des livres la maison et écoute des histoires, a envie de lire.

[单项选择]The greatest task facing agricultural scientists in this region is the __________ of an adaptable farming system.
A. determination
B. distribution
C. discipline
D. evolution

[单项选择]The biggest difficulty facing historians might be their _______.
A. inability to offer convicting and correct explanations to each historical figure or event
B. lack of evidence for their interpretation
C. obsession with absolute accuracy
D. unwillingness to Doterpret history from different perspectives

[单项选择]What problem is facing both developing and industrial nations
A. How to achieve literacy in their own countries.
B. How the environment can be changed to suit the people.
C. What methods of producing social and economic development can be found.
D. What ways of encouraging literacy as part of national development are possible.

[单项选择]The main task now facing ecologists, environmental activists and conservationists is ______.
A. to prevent pollution by legislation, economic incentives and persuasion
B. to arouse public awareness of the importance of environmental protection
C. to take radical measures to control environmental pollution
D. to improve the quality of life by enforcing environmental standards

[单项选择]

The biggest safety threat facing airlines today may not be a terrorist with a gun, but the man with the portable computer in business class. In the last 15 years, pilots have reported well over 100 incidents that could have been caused by electromagnetic interference. The source of this interference remains unconfirmed, but increasingly, exports are pointing the blame at portable electronic devices such as portable computers, radio and cassette players and mobile telephones.
RTCA, an organization which advises the aviation (航空) industry, has recommended that all airlines ban (禁止) such devices from being used during "critical" stages of flight, particularly take-off and landing. Some experts have gone further, calling for a total ban during all flights. Currently, rules on using these devices are left up to individual airlines. And although some airlines prohibit passengers from using such equipment during take-off and landing, most are reluctant to enforce a tot
A. a new regulation for all airlines
B. the defects of electronic devices
C. a possible cause of aircraft crashes
D. effective safety measures for air flight

[单项选择]Women today are facing a difficult situation which can be best interpreted by the fact that ______.

[单项选择]The main task now facing ecologists, environmental activists and conservationists is ______.
A. to prevent pollution by legislation, economic incentives and persuasion
B. to arouse public awareness of the importance of environmental protection
C. to take radical measures to control environmental pollution
D. to improve the quality of life by enforcing environmental standards

[单项选择]This question is the first in a series of questions that all present the same scenario. For your convenience, the scenario is repeated in each question. Each question presents a different goal and answer choices, but the text of the scenario is exactly the same in each question in this series. Start of repeated scenarioYou are an enterprise desktop support technician for Fabrikam, Inc. Active Directory InformationThe company has a main office and a branch office. The main office hosts all of the companys servers. The main office connects to the branch office by using a WAN link. The network contains a single Active Directory domain that has 500 users. The domain contains three domain controllers and an enterprise root certification authority (CA). All servers run Windows Server 2008 R2. All user accounts are in an organizational unit (OU) named Employees. The computer accounts for all desktop computers are in an OU named Desktops. The computer accounts for all portable computers are in an OU named Laptops. A startup script is deployed to all computers by using Group Policy objects (GPOs). Client ConfigurationsAll client computers run Windows 7 Enterprise. All users have desktop computers. All computers are members of the domain. All desktop computers use wired connections to connect to the network. All portable computers use wireless connections to connect to the network. The wireless network is secured by using EAP-TLS. Company policy states that all client computers must be configured by using DHCP. The company has an internal Web site. The Web site is configured to use SSL encryption and to require client certificates. All company users can access the internal Web site. End of repeated scenario The company hires a new desktop support technician. The technician is added to the Administrators group on all client computers and the DHCP Users group on all DHCP servers. The new technician reports that the DHCP snap-in is unavailable on his computer. You need to ensure that the technician can view the configurations of the DHCP servers. What should you do?（）
A. Instruct the technician to customize the Start menu to display the administrative tools.
B. Instruct the technician to install Remote Server Administration Tools (RSAT) and to modify the Windows Features.
C. Request that the technician be added to the Server Operators group in Active Directory.
D. Request that the technician be added to the Network Configuration Operators group in Active Directory and modify the Windows Features.