问题
判断题
酚磺乙胺与氢氧化钠试液加热后，放出二乙胺臭气，可使湿润的红色石蕊试纸变蓝色。
答案
参考答案：对
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酚磺乙胺与氢氧化钠试液加热后，放出二乙胺臭气，可使湿润的红色石蕊试纸变蓝色。
参考答案：对
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| Far out in the sea lived three Sirens,the three sisters of magic song. Half human and half bird,the Siren sisters sat in a field of flowers, 1 in voices that excited the hearts of men.The attractive songs were so 2 that ships were attracted to the 3 and struck to pieces on the rocks. No sailor nor ship had ever been known to 4 the island of the Sirens without being attracted to 5 . Acting on the advice of Circe, Odysseus made careful 6 against the Sirens．Before their ships came to where they could 7 the song, Odysseus had himself 8 the mast (桅杆), stuffed (堵住) the 9 of his men with wax (蜡) and ordered them to 10 his orders and gestures when they were passing the 11 island. Soon they came in sight of the 12 island, and the attractive song reached the ears of 13 . It moved him so much that he struggled in despair to 14 himself and shouted for his men to 15 the rich and flowery grass land of the singing sisters. But 16 paid any attention to him. The sailors kept straight on until they were 17 out of hearing. 18 his friends freed him and took the wax out of their ears. For 19 the Sirens had sung with no 20 . The eldest of the sisters, Partherope, loved Odysseus so much that she threw herself into the sea after his ships had passed. | ||||
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