待测物最大吸收波长向长波方向移动的现象称为蓝移效应。
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在进行紫外分光光度法分析时,采用单波长双光束仪器可以抵消吸收池所带来的测定误差,同时不需要参比。
A. 对
B. 错
为获得较高的测定灵敏度,采用紫外可见分光光度法测定溶液吸光度时,其数值越高越好。
A. 对
B. 错
There are many fun and __________ activities children can do at home with their parents, such as: singing nursery _________, doing art projects, building ________ activities, reading books, playing house or kitchen, puzzles, finding rocks or shells, and playing at the park. All of these activities are __________ and educational because they help build fine motor skills, perception of size/weight, vocabulary, math skills, and large motor skills. There is no right or wrong decision when it comes to having or not having preschool homework. Either decision has __________benefits and advantages. Giving a child a ___________, loving, and safe environment is what is most important to every child’s development.儿童可以在家里和他们的父母做很多有趣并且有教育意义的活动,例如:唱儿歌,做工艺品,搭建积木,读书,玩过家家,猜谜,找岩石或者贝壳,或者去公园玩。所有这些活动都是有益的并且有教育意义的,因为他们有助于构建良好的动作技能,感知尺寸或重量,词汇,数学技能和大型运动技能。有或没有幼儿园作业并没有正确或者错误之分。两者任意一个都有美妙的好处和优势。给孩子一个舒适的、充满爱的和安全的环境对每个孩子的发展是最重要的。
在明确产妇有做产后恢复项目的意向之后,无需对产妇的基本情况和产后恢复情况进行评估,可直接进行恢复服务计划并组织实施。
A. 正确
B. 错误