Li Ming is getting ready _______ school.[ ]
A. to
B. of
C. for
D. at
答案：C
罗氏培养基适用于培养下列哪种细菌( )
A．霍乱弧菌B．肠道细菌C．白喉杆菌D．破伤风梭菌E．结核杆菌
一般在皮下注射胰岛素后多长时间进食为宜( )
A．5min B．15min C．25min D．30minE．10min
