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【简答题】
A hospital wishes to establish a performance measurement for its 'quality of care', and in particular its adherence to appointment times for patients receiving medical checks. Which one of the following performance measurements would be the most suitable for this purpose? A. Average length of appointments B. Average number of appointments per day C. Average number of days from making an appointment to the appointment date D. Average waiting time at the hospital
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【简答题】食品中的矿物质通过以下五种方式损失: 的去除,与 相互作用而降低 ,食品加工中最初的 、 等除去下脚料的过程, 或 时遇水而使矿物质遭受损失,谷物的磨碎。
【单选题】下列数据中有效数字的位数为4位的是( )
A.
[H+] =0.0330mol·L-1
B.
pH=10.53
C.
[OH-] =3.005× mol·L-1
D.
m(Ca2+)=1.4032g