【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.
【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.