详细设计规格说明通常使用如下手段( )。
A．IPO与层次图
B．HIPO
C．IPO或PDL
D．HIPO或PD L
参考答案：D
甲为质权人，乙为出质人，质物担保债权额为5万元，后甲为与丙签订合同，遂征得乙同意后，将质物又出质于丙，质物担保债权额为6万元，则日后甲不履行债务，丙可在6万元范围内就质物优先受偿。 ( )
A pregnant client is taking folic acid. During prenatal teaching, which of the following foods would the nurse recommend as high in folic acid（）
A. Egg yolks.
B. Fruit.
C. Bread.
D. Milk.
