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- 1some time,sometime.sometimes,some times的区别
- 2must be是情态动词吗
- 3a result of that injury
- 4已知mn互为相反数,p,q互为倒数,且a的绝对值是2,求m+n/2012+2010pq+1/4a的值
- 5丙烯加聚反应生成聚丙烯
- 6She doesn't go to work on sunday.用yesterday替换on Sunday,其余做相应变化
- 7测量空气湿度的干湿泡温度计是用两个相同的温度计并列制成的,在使用时,其中一个温度计,下端的玻璃泡包着湿布因为水蒸发时要吸热,因此这个温度计的示数要比另一个的示数低,连个温度计的示数差值大,就表明空气中的水蒸气含量____,空气湿度____.
- 87200/(72*5) 用简便的方法计算
- 9One of the best ways for people to keep fit is to d heathy eatong habits首字母填空
- 10I spend about one and a half hours doing my homework every day (同义句)