皮皮学,免费搜题
登录
logo - 刷刷题
搜题
【单选题】
将纯苯与组分 i 配成混合液,进行气相色谱分析,测得当纯苯注入量为 0.435mg时的峰面积为 4.00 cm2,组分 i 注入量为 0.653mg 时的峰面积为 6.50 cm2,当组分 i 以纯苯为标准时,相对定量校正因子是
A.
2.44
B.
1.08
C.
0.912
D.
0.462
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
微信内点击右上角“…”即可分享
反馈
参考答案:
举一反三
【简答题】3 The elderly woman in the TV advertisement became popular, and this example shows that .A. Americans like old people as well as young people B. Americans sometimes like to follow the liv...
【简答题】专责监护人临时离开时,应通知被监护人员()或离开()。
【单选题】西餐中的敬酒礼仪哪项是不正确的?()
A.
只有主人才能提议干杯
B.
干杯时右手将酒杯举过头顶
C.
敬酒可以是在吃过主菜之后,上甜品之前进行
D.
他人敬酒致辞时应注意要停止交谈
【单选题】An elderly woman died yesterday after being knocked down by a motorist. The driver had【C1】______no attempt to brake(刹车). When a policeman asked him, a man of 69, to read the number plate of a car park...
A.
made
B.
done
C.
given
D.
had
【单选题】3 The elderly woman in the TV advertisement became popular, and this example shows that ______.
A.
Americans like old people as well as young people
B.
Americans sometimes like to follow the lives of ordinary people
C.
  Americans enjoy following the lives of famous people
D.
Americans pay a lot of attention to people with special  abilities
【简答题】3 、The elderly woman in the TV advertisement became popular, and this example shows that __________ .A. Americans like old people as well as young people B. Americans sometimes like to follow the ...
【简答题】专责监护人临时离开时,应通知被监护人员()或离开工作现场,待专责监护人()方可恢复工作。
【单选题】西餐中的敬酒礼仪哪项是不正确的?( )
A.
只有主人才能提议干杯
B.
干杯时右手将酒杯举过头顶
C.
敬酒可以是在吃过主菜之后,上甜品之前进行
D.
他人敬酒致辞时应注意要小声交谈
【单选题】根据下面的内容,对“用筷之道”的作用认识不正确的是( ) 筷子,是用餐礼仪的载体,是传授为人之道的“道具”,是中国饮食文化的象征。“用筷之道”成为中国传统文化的重要组成部分,如孩子为父母夹菜,长辈谦让晚辈,是“礼”的体现。中国家庭是从孩子学筷起进行礼仪启蒙的。开饭时,都是长辈动筷后,其他人才可以动筷;用餐时,先要用两手将筷子对其,才可以夹取食物;吃完饭,还应把筷子对齐放在桌上。
A.
启蒙孩子礼仪
B.
提升长辈地位
C.
传授为人之道
D.
传授饮食文化
【判断题】( )布放缆线在线槽内的截面利用率应为25%~30%。
A.
正确
B.
错误
相关题目:
参考解析:
知识点:
题目纠错 0
发布
创建自己的小题库 - 刷刷题