[单项选择]Safety officials have (earnestly) questioned whether the increased use of synthetic materials heightens the risk of fire.
A. cautiously
B. severely
C. accurately
D. seriously

[单项选择]Safety officials have earnestly questioned whether the increased use of synthetic materials heightens the risk of fire.（　）
A. cautiously
B. severely
C. accurately
D. seriously

[单项选择]Recent studies have posed the question as to whether there is a link between film violence and real violence.
A. supposed
B. poised
C. aroused
D. raised

[单项选择]A safety analysis would have identified the______ target as a danger. Unfortunately, it was never done.
A. overwhelming
B. constant
C. potential
D. inevitable

[单项选择]Automobiles must have certain safety devices such as seat belts and good brakes.
A. 汽车应有一定的安全性, 要有安全带和好的刹车。
B. 汽车有了安全带和好的刹车就是安全的。
C. 汽车应有安全装置, 比如安全带和好的刹车。
D. 汽车必须有安全带和好的刹车这两个安全装置。

[单项选择]Which of the following is a key predictor of whether students will eventually graduate from college


A. Race.
B. Economic situations.
C. Completion of a rigorous course of study in high school.
D. Involvement in social activities.

[单项选择]If you learn to read the signs, you can tell whether what a person says is what he really means.
A. 如果你学会解读这些姿势，你就能辨别出一个人是否所说就是所指。
B. 如果你学会阅读这些指示，你就能说出那个人说的是否是真的。
C. 如果你学会阅读这些指示，你就可以辨别出一个人所说的是否真是他心里想的。
D. 如果你学会理解这些手势，你就会分辨出一个人是否口是心非。

[单项选择]I think girls can be ______ they want to be, whether it is a pilot or a manager.
A. wherever
B. however
C. whoever
D. whatever

[多项选择]You need to evaluate whether the currently available network bandwidth is adequate to run NewApp. Which three actions should you perform?（）
A. Use a debug version of NewApp to collect information about NewApp.
B. Use Performance Monitor to collect data about the saturation of each WAN link.
C. Use Network Monitor to analyze the data that is transmitted over the network for App1.
D. Install SNMP on all computers that are connected to App1 to obtain information about App1.
E. Build a test environment for NewApp to analyze how much bandwidth is required for NewApp.

[单项选择]For your safety and the safety of others, always ______ the traffic signals.
A. peek
B. heed
C. leak
D. clent

[单项选择]The failure to implement safety procedures needed in aviation and high-rise office design results from______.
A. the great speed and efficiency of modern society
B. the complexity of various organizations
C. the management style
D. the predominance of concerns about profitability

[单项选择]The National Safety Council urges drivers and passengers to wear seat belts as a {{U}}warning{{/U}} against injury.
A. caution
B. precaution
C. security
D. safety

[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. they don't believe there is such a danger as radio interference
B. the harmful effect of electromagnetic interference is yet to be proved
C. most passengers refuse to take a plane which bans the use of radio and cassette players
D. they have other effective safety measures to fail back on