其实，语义上a half hour和half an hour也还是有点差异的。half原始语义是part或side，并非“精确的一半”。现代英语中，half通常理解成30分钟，但还是有不精确的定势。half冠上不定冠词a，尽管依旧不定，但是实物款感更强一些。也就是a half比单独的half更接近0.5 hours，30 minutes，1800 seconds。比如 【例...
百度试题 结果1 题目There are 30 ___ in half an hour. A. minutes B. seconds C. months 相关知识点: 试题来源: 解析 [解答]A 考查名词辨析。句意:半小时有30分钟。根据句意结合选项:A 分钟;B 秒钟;C 月。故选A。 [分析]反馈 收藏
full duration of radioactivity. For example, if one starts with 100 grams of radium 229, whose half-life is 4 minutes, then after 4 minutes only 50 grams of radium will be left in the sample, after 8 minutes 25 grams will be left, after 12 minutes 12.5 grams will be left, and so ...
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1、long measure(长度单位):So fast are electronic computers that hours, minutes and seconds are all much too long to measure their speed. 电子计算机的运算速度快得难以用小时、分、秒计算。 2、half measure(折衷办法,姑息...
其实,语义上a half hour和half an hour也还是有点差异的。half原始语义是part或side,并非“精确的一半”。现代英语中,half通常理解成30分钟,但还是有不精确的定势。half冠上不定冠词a,尽管依旧不定,但是实物款感更强一些。也就是a half比单独的half更接近0.5...
(3)C 推理判断题。根据最后一段中About four minutes later, when she opened her eyes, she saw Doctor Tim holding her tooth. Then the doctor gave her a teddy bear. From then on, Rose wasn't afraid of doctors any more.大约四分钟后,当她睁开眼睛时,她看到蒂姆医生拿着她的牙齿。然后医生给了...
8 half hours 4 The hour hand is exactly at the number 3 on the clock. Where is the minute hand? 6 3 Halfway between 3 and 4 12 5 The minute hand of a clock is at 6, and the hour hand is halfway between 5 and 6. What time is it? 5:30 6 6 minutes past 5 5Frequently...
none of the above2. Job seekers have to make an impression on interviewers in ___. ( ) A. thirty minutes B. fifteen minutes C. thirty seconds D. fifteen seconds3. If you're offere d a chair during a job interview, you'd better . ( ) A. sit down an d lean back B. sit ...
1、long measure(长度单位):So fast are electronic computers that hours, minutes and seconds are all much too long to measure their speed. 电子计算机的运算速度快得难以用小时、分、秒计算。 2、half measure(折衷办法,姑息手段):This job must be done properly I want no half measures. 这工作必须按...