-I want to sit at the table near the window.-Sorry, _______already.
A. it took
B. it takes
C. it is taking
D. it has been taken
查看答案
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
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
微信支付 
支付宝支付