最常见的头痛类型是
A.外伤性头痛
B.偏头痛
C.颈源性头痛
D.肌紧张性头痛
E.丛集性头痛
参考答案:B, D, E
根据句意及首字母或汉语提示完成下列句子。
1. I was supposed to a at 7:00, but I arrived at 8: 00.
2. He k his wife and children saying goodbye.
3. It's polite to shake h with others in China.
4. What are people in our country (应该) to do when they haven't met for a long time?
5. His______(习惯) is to get up early and have a cold bath.
从政府宏观调控角度看,每年平衡预算不如周期平衡预算易于操作