题目

—I’m sorry I can’t help you. —____A. Not at all. B. I’m not happy. C. Thank you all the same. D. You can’t come back. 答案:【答案】C【解析】句意:——我很抱歉,我帮不了你。——尽管如此,还是要谢谢你。本题考查常用日常交际用语。A. Not at all不客气; B. I'm not happy. 我不高兴;C. Thank you all the same.尽管如此,还是要谢谢你; D. You can't come back. 你不能回来。根据题干I'm sorry I can't help you.可知应说尽管如此,18.小明家新安装了一台容积为0.5m3的太阳能热水器,加满水后,经过4h阳光照射,水温由原来的20℃升高了60℃.问:(1)4h内水吸收了多少热量?(2)若这些热量由效率为30%的火炉燃烧焦炭来提供,则需要燃烧多少千克焦炭?[水的比热容c水=4.2×103J/(kg•℃)、焦炭的热值q=3.0×107J/kg].
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