Why do big American companies demand that their employees pass in and out of their work place with an access card?
A. Because they want to figure out a way to hold the terrorists.
Because they feel threatened and want to keep outsiders away.
C. Because they think it is a symbol of their identity.
D. Because it is more convenient.
查看答案
Businessmen are buying new machines to analyze a ________ in order to tell whether their friend or client is _________ .
People think that electronic X-ray equipment can hold ___________at bay.
Airports are still a place of education and fun today.
A. 对
B. 错
A—Diskette drive B—Liquid Crystal DisplayC—Left Speaker D—System-expansion connectorE—System-status indicators F—Audio control panelG—Power switch H—Modem connectorI—Line-in jack J—Headphone jackK—Memory door L—MicrophoneM—External input device connector N—Power jackO—External Monitor port P—Microphone jackQ—Audio volume control