必须实行正确的（），保证全党行动的一致，保证党的决定得到迅速有效的贯彻执行。
A、领导
B、民主
C、集中
D、纪律
参考答案：C
单词拼写
1. You'll need p__________ and understanding if you're going to be a teacher.
2. If anything happened to the kids, I'll never f__________ myself.
3. Li Xiaopeng o__________ his success to hard training and good skill.
4. It seems f__________ to give them a second chance.
5. I do want you to know how much I t__________ our friendship.
系统性红斑狼疮关节表现，正确的叙述是
A．大、小关节均可受累
B．多为单侧性，不对称
C．多为非侵蚀性
D．与疾病活动伴发出现
E．以上都不是
