A:生铁能完全溶解在足量的稀硫酸中
B:铁丝浸入稀盐酸,形成黄色溶液
C:氯化钠溶液会加快钢铁的锈蚀
D:用干粉灭火器扑灭图书档案室的火灾
建国以来,中国科技在科学家的努力下取得了举世瞩目的成就。其中属于下图科学家的成就是( )
从下面方框中选择正确的单词并用其适当形式填空,使短文意思完整、通顺。
come, for, good, daughter, one, have, June, banana, when, we
Dear Jenny,
My name is Alan. I'm a 12-year- old girl. I'm the only ____ in my family. My birthday is on ____ 1st. It's the ____ day of the sixth month. It's also the Children's Day(儿童节). My parents ____ a party for me on that day. My friends ____ to the party. They bring(带来) me many birthday presents(礼物), and they sing Happy Birthday to me. ____ eat some strawberries, oranges and ____. We eat chicken and cakes ____ dinner. We also play games. We have a ____ time! How old are you? ____ is your birthday? Can you tell me?
Alan
将一份刚采摘的新鲜蓝莓用高浓度的CO2处理48h后,贮藏在温度为1℃的冷库内。另一份则始终在l℃的冷库内贮藏。从采后算起每10天定时定量取样一次,测定其单位时间内CO2释放量和O2吸收量,计算二者的比值得到下图所示曲线。下列叙述与实验结果不一致的是( )