第14题: [单项选择]我国对克隆技术是否应该用于人类的立场是() A. 允许治疗性克隆,不允许生殖性克隆 B. 不允许治疗性克隆,允许生殖性克隆 C. 允许一切克隆 D. 不允许一切克隆 E. 以上都不是 参考答案:A
第15题: [简答题]假定你是李明,你的美国笔友Alex将于今年四月到杭州进行为期一个月的学习。请根据以下要点给他写封信: 1.表示欢迎; 2.月平均气温20度左右; 3.带雨伞、相机; 4.祝旅行愉快。 注意: 1.词数100词左右; 2.可适当增加细节,以使行文连贯; 3.请直接将书面表达写在背面。 参考答案:
Dear Alex,
I am so glad to hear that you are going to study in Hangzhou for a month. We eventually have the opportunity to see each other and I could not wait to meet you in China!
The weather will be quite comfortable in April, with the average temperature of B0 degree celsius. It will be a good time to stay outside and visit places of interest in Hangzhou. Therefore, do not forget to bring your camera! I bet you will be deeply impressed by the beautiful scenery in Hangzhou. Also Hangzhou will be quite humid at that time. Bring your umbrella with you in case we get caught in the rain.
I am looking forward to your coming. Wish you have a nice trip in advance!
Yours sincerely,
答案解析:
这是一篇书信写作。写作时首先要注意不要遗漏要点,其次要注意写信的口吻和语气。这封信是写给自己的笔友,同时对他即将到杭州学习表示欢迎,因此可以使用热情活泼的口吻来写作。
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第31题: [单项选择]Over ten people died and twenty people were wounded ______in the train crash. A. horribly B. wrongly C. bitterly D. seriously 参考答案:D 答案解析:词义辨析。horribly 可怕地,恐怖地;wrongly 错误地;bitterly充满仇恨地,悲伤地;seriously严重地。
第32题: [单项选择]IEEE 802标准中,_______规定了LAN参考模型的体系结构。 A. 802.1A B. 802.2 C. 802.1B D. 802.3 参考答案:A 答案解析:[知识点] 网络体系结构与协议的基本概念 [评析] 802.3规定了CSMA/CD访问控制方法和物理层技术规范。 802.2规定了逻辑链路控制LLC。 802.1B规定了寻址