造血干细胞移植过程中间质性肺炎的发生与下列哪些因素有关（）
A.感染
B.预处理中药物剂量
C.放疗
D.患者年龄
E.以上均是
参考答案：E
观察单项式：2a，-4a2，8a3，-16a4…根据规律，第n个式子是______．
根据下列句子及所给汉语注释，写出空缺处各单词的正确形式，每空只写一词。
小题1:Don’t forget to check your test paper (仔细)__________before the exam is over.
小题2:He only （睡觉）for four hours last night. Now he feels very tired.
小题3:We believe our sports meeting will surely be a complete (成功).
小题4: More and more people get to know the __________(重要性) of learning English.
小题5:His sister worked as a nurse in the (当地的) hospital after graduating from the college.
