下列哪一项不会对维修人员产生影响（）.
A.知识、技能
B.国际的局势的变化
C.所处的工作环境
D.所在的企业文化
参考答案：B
Larry and his wife were killed in the volcanic eruption, _______ their 5-year-old son alone in this world.
A．leaving
B．and left
C．to leave
D．left
Grave’s病患者服用他巴唑出现下列何项是停药指征（）
A.胃肠道反应
B.肝肿大
C.头昏、乏力
D.突眼加重
E.中性粒细胞小于1.5×109
