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【单选题】
超声波在有机玻璃中的声速比在水中的声速大,比在钢中的声速( )。
A.
B.
C.
相等
D.
不确定
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举一反三
【单选题】一篇完整的广告文案是由()三部分组成。
A.
标题、正文和附文
B.
引题、正题和附文
C.
标题、正文和副文
D.
引题、正题和正文
【单选题】21如果一台主机的IP地址为192.168.0.10,那么这台主机的IP地址属于_____
A.
c类地址
B.
a类地址
C.
b类地址
D.
无用地址
【判断题】ARP欺骗的最终是导致主机的本地ARP表出现错误的IP地址和MAC地址映射,可以通过添加静态ARP表项到ARP表中,从而手工绑定IP-MAC映射
A.
正确
B.
错误
【单选题】The food we eat seems to have profound effects on our health.Although science has made enormous steps in making food more fit to eat ,it has, at the same time,made many foods unfit to eat. Some resear...
A.
Because of science , diseases caused by polluted food haven been virtually eliminated.
B.
It has caused a lack of information concerning the value of food.
C.
Because of the application of science,some potentially harmful substances have been added to food.
D.
The scientists have preserved the color of meats,but not of vegetables.
【多选题】Topic sentence: The amount of alcohol a person consumes has been found to depend on a number of socioeconomic factors such as age, sex, ethnic background and occupation.
A.
Some religions prohibit consumption altogether, and most encourage moderation.
B.
People in a lower socioeconomic level drink more than people in a higher socioeconomic level.
C.
In some cultures drinking is common at meals, but these same cultures disapprove of drunkenness .
D.
Farm owners have the highest proportion of nondrinkers, while professionals and businessmen have the highest proportion of drinkers.
【判断题】香槟就是汽酒。
A.
正确
B.
错误
【单选题】一篇完整的广告文案是由______、______、______三部分组成。
A.
引题、正题和附文
B.
标题、正文和附文
C.
标题、正文和副文
D.
引题、正题和正文
【单选题】Emperor Charlemagne of the Franks was crowned in 800 A.D.The Frankish Empire at that time extended over what is now Germany, Italy, and France. Charlemagne died in 814, but his briefreign marked the d...
A.
Cultural traditions function to identify members of a culture to one another and, also,to allow the individual to self-identify.
B.
Many of the traditions of these cultures remained active in Frankish society for centuries.
C.
When tradition is lacking or is not honored by the younger generation in a society, there is danger that the culture will be lost.
D.
It is unnecessary to discuss the origin ofthese traditions;it will only muddy the water.
【单选题】如果一台主机的IP地址为192.168.0.10,那么这台主机的IP地址属于 。
A.
C 类地址
B.
A 类地址
C.
B类地址
D.
无用地址
【单选题】In the USA, jokes about politicians, women and the elderly are common, but these are ____in other cultures.
A.
good choices
B.
right one
C.
taboo
D.
safe topics
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