问题
单项选择题
聚氨酯结构胶与大气中的()反应固化形成一种永久性的弹性物质。
A、氧气
B、湿气
C、二氧化碳
答案
参考答案:A
聚氨酯结构胶与大气中的()反应固化形成一种永久性的弹性物质。
A、氧气
B、湿气
C、二氧化碳
参考答案:A
从下面方框中选出8个单词,用它们的适当形式填入短文空格内,使短文意思正确、通顺。(每词限用一次)
Once he stayed in a city for two 77 . When New Year was coming, he went back home to see his wife and his children. On his way home, something was 78 with his eyes. When he knocked on the door, his dog 79 out and was not friendly to him. His wife hurried to drive it away. The next morning he went to see a doctor. The doctor looked over his eyes 80 and gave him some 81 . Before he left, he told the doctor about his dog. When he heard this, the doctor began to laugh and said, “Maybe something is wrong with your dog’s eyes, too.” When Mr. Shute got home, he told his wife about it. The woman said, “I’m afraid it’s true. If a thief comes into our house, it won’t see him and he’ll steal 82 here.” Mr. Shute thought his wife was right. He then made his dog 83 his medicine instead. 小题1:____ ___ 小题2: __________ 小题3: ________ 小题4: ___________ 小题5:__________ 小题6: __________ 小题7:___________ 小题8:___________ |