以系统安全理论为核心的现代安全管理方式、模式、思想、理论是在()进入我国的。
A. 20世纪初期
B. 20世纪50年代
C. 20世纪80年代
D. 20世纪末期
查看答案
该患者上述症状应属于
A. 甲状旁腺功能亢进症的症状
B. 胃肠道症状
C. 骨骼肌肉系统症状
D. 神经精神症状
E. 甲亢症状
A computer becomes the property of the purchaser when he pays the last instalment under______.
A. a credit sale agreement
B. a hire-purchase agreement
C. an instalment trading agreement
D. none of the above
What is the function of the book-keeping system in bank accounting？______.
A. To prove that all the day's transactions have gone through for the right amount
B. To prove that all the day's transactions have all been posted to the right account
C. To prove that the fresh balance of those accounts is correct after recording the transactions
D. All of the above
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