断针的原因包括下列哪项:()
A.针身与针柄连接处剥蚀、断裂
B.提插捻转时用力过猛
C.留针时患者体位改变
D.留针时,外物碰压所致
E.留针时间太长
参考答案:A, B, C
Finding the old man in danger , . [ ]
A. a doctor was sent for without delay.
B. an ambulance was called for at once.
C. his son sent for a doctor at once.
D. The house was crowded with his children.
在中国境内设立的外商投资企业,会计记录文字应当符合的规定是( )。
A.只能使用外文
B.只能使用中文
C.中文和外文任选一种
D.使用中文也可以同时使用一种外文