食品进货查验记录应当真实，保存期限不得少于（ ）。
A．一年
B．二年
C．三年
D．四年
参考答案：B
以下提供若干组考试题，每组考试题共用在考试题前列出的A、B、C、D、E五个备选答案。请从中选择一个与问题关系最密切的答案。
箱状固位形的深度至少为
A．0.5mm B．1.0mm C．1.5mm D．2.0mm E．3.0mm
For periods beginning on or after l January 2011, the Global Investment Performance Standards () require that total firm assets be defined as the aggregate fair value of all:（）
A. discretionary assets in fee-paying portfolios managed by the firm.
B. discretionary and non-discretionary assets in fee-paying portfolios managed by the firm.
C. discretionary and non-discretionary assets in fee-paying and non-fee-paying portfolios managed by the firm.
) require that total firm assets be defined as the aggregate fair value of all:（）