单项选择题

The best title for this passage would be

A．The Atmosphere and Our Environment
B．Research on Radiation
C．Effects of Space Radiation
D．Importance of Protection Against Radiation
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单项选择题
It can be learned from the passage that Royal Doulton is______.
A．a retailer of stainless steel tableware
B．a dealer in stoneware
C．a pottery chain store
D．a producer of fine china
单项选择题
Which of the following may be the best reason for casual dining
A．Family members need more time to relax.
B．Busy schedules leave people no time for formality.
C．People want to practice economy in times of scarcity.
D．Young people won't follow the etiquette of the older generation.
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