八、 請問食品工廠品保管理之責任為何？

九、 請說明於分析奶類食品原物料時，其可能之生物性、化學性及物理性危害為何？請列舉兩例說明之。

十、 冷凍雞塊加工製造廠在處理雞隻時，需避免遭受哪兩種主要病原菌之污染？

(a) Give one example to show that "the simplest expression of a Boolean function may not be unique". (4%)

(b) Give a general structure of a sequential circuit and use this structure to explain the differences of a sequential circuit from a combinational circuit (4%)

(c) What is a Mealy finite state machine? (2%) Give one design example of a Mealy finite state machine. Note that you need to give the function of this design and its state diagram. (5%)

(d)Give some waveforms to explain the meaning of the setup time and the hold time of a D flip-flop. (5%)

(a)Give Verilog/VHDL codes of a synchronously resettable positive edge-triggered flip-flop. (3%)

(b) Draw the state transition diagram and define each state clearly. (5%)

(c)Write RTL Verilog/VHDL codes to implement the finite state machine you designed in (b). (10%)

[Problem 3] (15%) 2-4-2-1 is a useful 4-bit binary code to represent decimal digits, as listed in Table 1. Design a combinational circuit F that can check if the decimal input encoded by 2-4-2-1 is a prime number, i.e., a positive integer that is greater than 1 and can be exactly divided by only 1 and itself. That is, the output F of the circuit equals 1 if and only if the decimal input is a prime number. You need to show the truth table of this circuit and design the two-level NAND-NAND network using the minimumn number of logic gates and literals. Please note that the input code words (w, x, y, z) and their complements can be used directly as fan-in in the final logic diagram, and the unused input code words can be used as don't care conditions for logic simplification.

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