在某一汽车展览中,汽车在一座三层楼的一到三层内展出。每层楼内的汽车要么全是家用车,要么全是跑车;要么全部是新车,要么全部是二手车;要么全部是产品车,要么全部都是研究用车。该展览遵从以下条件:(1)若该展览中既包括家用车又包括跑车,则每一辆家用车都被放在跑车的下面一层;(2)该展览中没有二手的研究车; (3)该展览中没有研究用跑车;(4)一楼有新车;(5)三楼有二手车。 若研究用车恰好在两个楼层上,则下面哪一句话可能错误
A. 第一层有家用车。
B. 第一层有研究用车。
C. 第二层有新车。
D. 第三层有家用车。
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In the 1960s, medical researchers Thomas Holmes and Richard Rahe developed a checklist of stressful events. They appreciated the tricky point that any major change can be stressful. Negative events like "serious illness of a family member" were high. on the list, but so were some positive life-changing events, like marriage. When you take the Holmes-Rahe test you must remember that the score does not reflect how you deal with stress--it only shows how much you have to deal with. And we now know that the way you handle these events dramatically affects your chances of staying healthy. By the early 1970s, hundreds of similar studies had followed Holmes and Rahe. And millions of Americans who work and live under stress worried over the reports. Somehow, the research got boiled down to a memorable message. Women’s magazines ran headlines like "Stress causes illness." If you want to stay physically and mentally healthy, the articles said, avoid stressful events. But such simplistic advice is impossible to follow. Even ff stressful events are dangerous, many--hke the death of a loved one- are impossible to avoid. Moreover, any warning to avoid all stressful events is a prescription (处方) for staying away from opportunities as well as trouble. Since any change can be stressful, a person who wanted to be completely free of stress would never marry, have a child, take a new job or move. The notion that all stress makes you sick also ignores a lot of what we know about people. It assumes we’re all vulnerable (脆弱的) and passive in the face of adversity (逆境). But what about human initiative and creativity Many come through periods of stress with more physical and mental vigor than they had before. We also know that a long time without change or challenge can lead to boredom, and physical and mental strain. According to the passage people who have experienced ups and downs may become ______.
A. nervous when faced with difficulties
B. physically and mentally strained
C. more capable of coping with adversity
D. indifferent toward what happens to them
案例分析题网络传输介质包括有线介质与无线介质,但()目前还不是网络传输介质。网络的数据传输速率通常采用单位bps,它代表()。 网络的数据传输速率通常采用单位bps,它代表()。
A. 每秒传输的字节数
B. 每秒传输的字符数
C. 每秒传输的位数
D. 每秒传输的单词数
The color display will use both chrominance and luminance information. A black and white display uses (74) .
A. neither of the two components
B. the chrominance component
C. the luminance component
D. both of the twocomponents
甲将自己创作的多媒体作品赠送给乙,乙在一次多媒体作品展中将该作品参展。乙的行为侵犯了甲的 (27) 。
A. 出租权
B. 展览权
C. 发行权
D. 署名权