长期血液透析患者最主要的死亡原因是（）
A.消化道出血
B.心血管系统并发症
C.神经系统并发症
D.透析性骨病
E.感染
参考答案：B
用适当的词填空。
1. January is the _________ month of the year.
2. February is the _________ month of the year.
3. December is the _________ month of the year.
4. _________ is the third month of the year.
5. _________ is the fourth month of the year.
6. _________ is the fifth month of the year.
中国政治体制改革的纲领是邓 * * （）的讲话。
A.《加强党的领导，整顿党的作风》
B.《党和国家领导体制的改革》
C.《关于政治体制改革问题》
