问题
单项选择题 B1型题
对眼睛刺激作用最强的是（）
A.臭氧
B.过氧乙酰硝酸酯
C.铅
D.甲醛
E.苯并A.芘
答案
参考答案：D
搜题请搜索小程序“爱下问搜题”
对眼睛刺激作用最强的是（）
A.臭氧
B.过氧乙酰硝酸酯
C.铅
D.甲醛
E.苯并A.芘
参考答案：D
| 完形填空。 | ||||
| Chinese scientists are again becoming excited about the fact that a large hairy animal may live in central China. Now they hope it won't be too long before they are able to 1 its existence. Their confidence is the 2 of a new discovery of the mystery animal in Hubei Province. Ten Chinese 3 , enjoying a holiday in a National Forest Park, were driving down a road. As their bus turned a corner, the men were suddenly 4 by what they saw. Three 5 animals, covered with long black hair, were crossing the road. On seeing the animal, the engineers immediately stopped and 6 them. 7 , when they saw how the animals moved through the forest with great 8 and strength, they did not dare to follow any further. The men did not take any 9 . However, scientists are 10 by the discovery, because the engineers were all very educated people and scientists feel they can 11 what they described. After the discovery, scientists returned to the forest and 12 some hair and measured footprints. About 20 inches appears to be the animal's foot! Chinese scientists have now set up a special group to exchange information and make a 13 of the forest. But in the meantime, some people 14 to believe that this half- man, half-monkey exists. They will not believe that it is 15 until one of the animals has been caught. | ||||
|