新疆的绿洲水源主要来自于_______和_______。
山区降水;冰雪融水
用所给词的正确形式填空。
1. Are you____ (have) a picnic? No, we____ (be not).
2. What is he____ (do)? He is____ (take) pictures.
3. (be) Wu Yifan (write) a report?
4. It's time____ (go). Where____ (be) John?
5. Is she____ (collect) ____ (leaf)?
下列哪些为心血不足型心悸的主症()
A.善惊易恐
B.心悸头晕
C.面色无华
D.倦怠乏力
E.心悸,脉结代