保健食品的包装材料和标签由专人保管，每批产品标签______、领用，______的包装材料应有记录。
参考答案：凭指令发放 销售
If the promised yield is equal to the realized yield then:（）
A. the coupon payments are reinvested at the promised yield during the life of the issue.
B. current yield is lesser than the yield to maturity.
C. promised yield is greater than current yield.
下列哪种封装不是电阻的封装（）。
A.AXIAL-0.3
B.RESC1608N
C.DIP-8
D.以上都不是
