做“酸雨对生物的影响”探究实验时,有名同学用食醋和清水配置成了“模拟酸雨”,他把pH控制在4.0以下.他设计的实验方案是:
①取两只相同的培养皿标号为A、B,分别在两培养皿底部垫上两层吸水纸,加入等量的水使纸湿润,分别放10粒大豆种子,在种子上面覆盖相同的潮湿的纱布,把培养皿放在温暖的地方培养.②每天在A装置上淋几次“模拟酸雨”;在B装置上淋等量清水.③每天观察大豆种子的发芽状况,记录发芽数.
用所给单词的适当形式填空
①He was one of the best____ in yesterday’s football match.(play)
②More and more____ have come to visit China over these years.(foreign)
③She hoped that her son would become a____.(music)
④The teacher was pleased with her____.(honest)
⑤The mother didn’t know why her daughter was crying____.(noise)
《无题》中抒写浓郁的离别之恨,紧扣暮春时节的景物特点,渲染离别的气氛的句子:____ ,____ 。