下列哪种细菌不会引起食物中毒
A．产肠毒素的金葡菌B．鼠伤寒杆菌C．蜡样芽胞杆菌D．希氏沙门菌E．痢疾杆菌
参考答案：E
We try to keep _______ electricity supply during the Spring Festival in case we run out. [ ]
A. too much
B. a number of
C. plenty of
D. a good many
挤出模具包括什么？用于什么成型？其作用是什么？
