【单选题】已知英文字母m的ASCII码值是109,那么英文字母j的ASCII码值是( )。
【判断题】In a communicative syllabus, the objective of teaching a foreign language is developing learner’s linguistic competence. ()
【简答题】转账凭证不是会计凭证而是记账凭证。( )
【单选题】The risk of dying from cancer in developedcountries is
A.
doublethat;n developing countries.
B.
much higher than that in developingcountries。
C.
the sameas that in developing countries.
D.
much lower than that in developing countries.
【判断题】Population experts tell us that by the year 2025, the population in cities in developing nations will increase to five times its present size.()
【简答题】铜是人类最早使用的金属,我国青铜器的生产和使用在距今3000年以前的夏商时代,以后的三、四百年的春秋战国时期开始生产和使用铁器,直到十九世纪人类才能冶炼出金属铝.回顾金属冶炼的发展史,能给你哪些启示?请谈谈你的感受.(从化学知识、情感两方面谈)