根据《水质凯氏氮的测定》(GB/T11891-1989),在水样中加入硫酸并加热消解,目的是使有机物中的()以及游离氮和铵盐转变为()。
参考答案:胺基氮;硫酸氢铵
向近中、舌或颊侧倾斜的远中孤立磨牙做基牙时,常采用哪种弯制卡环?()
A.三臂(正型)卡环
B.回力卡环
C.对半卡环
D.圈(环)形卡环
E.单臂卡
The client is taking lithium (Lithobid). Which instruct should the nurse give to the client
A.Drink at least six to eight glasses of water per day and to avoid caffeine.
B.Limit the use of salt in his diet.
C.Discontinue medicine when feeling better.
D.Increase the amount of sodium in his diet.