经行吐衄的发病机理主要是
A．肝经郁火B．肝阳上亢C．血热气逆D．脾肾阳虚E．肝肾阴虚
参考答案：C
用所给动词的适当形式填空。
1. They _____ (go) to the park last Sunday.
2. Bob was so tired that he _____ (sleep) earlier than usual.
3. My mother _____ (give) me a present lasl. Christmas.
4. Mrs. Li _____ (live) here many years ago.
5. She was in a hurry, so she _____ (not have) time to cook for you.
谷歌云计算主要由（）组成。它们是内部云计算基础平台的主要部分
A.谷歌操作系统
B.MapReduce
C.谷歌文件系统
D.BigTable
