问题
单项选择题 B1型题
膜剂制备中常用的增塑剂是()
A.甘油
B.二氧化钛
C.蔗糖
D.聚山梨酯-80
E.淀粉
答案
参考答案:A
膜剂制备中常用的增塑剂是()
A.甘油
B.二氧化钛
C.蔗糖
D.聚山梨酯-80
E.淀粉
参考答案:A
完形填空。 | ||||
The Genesis(起源) of the Olympics The Olympic Games are an international sports competition, in which 1 play in many different types of games. Some athletes compete in the 2 Olympics. Some compete in the Summer Olympics. The Olympic Games are very old and have a very interesting history. The first Olympic Games were held in 3 in ancient times(古代). They probably began in the sixth century B.C. The contests were held every 4 years in the summer. The first games lasted for only one day. There was only one contest. It was a short 5 . Only Greek men were allowed to run in the race. 6 women were allowed, and no non-Greeks were allowed to run in the race. 7 were not allowed to watch the race, either, or to be anywhere near the racing area. 8 events were added later. One event added later was swimming. But the ancient games were stopped in 9 century A.D., 10 Greece was ruled by Rome. Now, how much do you know about the genesis(起源) of the Olympics? | ||||
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