The letter three days ago and it yesterday.
A. had post, had arrived
B. was posted, arrived
C. posted,arrived
D. had been posted, was arrived
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He told me that the final examination ______ next Thursday.
A. is given
B. will be given
C. would have given
D. would be given
发病学研究的内容是
A. 自稳调节紊乱的变化
B. 疾病发生的条件
C. 疾病发生的诱因
D. 疾病发生发展和转归的规律
下列哪项属于疾病发生发展的一般规律
A. 疾病的经过与转归
B. 疾病发展过程中的程序
C. 疾病过程中损失与抗损伤的关系
D. 疾病过程中原因和条件的关系
在损伤与抗损伤的发病规律中，以下叙述错误的是
A. 贯穿疾病的始终
B. 相互联系，相互斗争，构成疾病各种临床表现
C. 决定疾病的消长和转归
D. 是推动疾病发展的基本动力
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