第8题: [单项选择]十进制数87转换成无符号二进制整数是______。 A. 01011110 B. 01010100 C. 010100101 D. 01010111 参考答案:D 答案解析:[解析] 十进制数转换成无符号二进制数采用除二取余法,经计算87转换成无符号二进制整数为01010111。
第17题: [单项选择]{{I}}Questions 11—13 are based on the following dialogue. You now have 15 seconds to read Questions 11—13.{{/I}}What is the possible relationship between the speakers A. Mother and son. B. Father and daughter. C. Teacher and student. D. Husband and wife. 参考答案:D 答案解析:[听力原文]11-13
Elina: What’s the matter with you, then It seems that you axe hostile and miserable.
第33题: [单项选择]患者为某烧碱车间电解工段修槽工,发育良好,神志清。咽部与口腔黏膜充血,有多处点状溃疡,牙龈红肿、出血。其疾患最可能是() A. 锰中毒 B. 铅中毒 C. 砷中毒 D. 汞中毒 E. 苯中毒 参考答案:D 答案解析:烧碱车间电解工段修槽工可能接触汞,再加上咽部、口腔症状提示可能是汞中毒,即答案D。该工种不可能接触锰、铅、苯。电解法生产硅铁可接触砷化氢,此处为烧碱车间,所以,亦可除外砷中毒的可能性,此外症状及临床表