体温降低见于
A．无菌性炎症B．大量失血C．组织破坏D．恶性肿瘤E．免疫反应
参考答案：B
There was a lot of fun at yesterday's party. You _____ have come, but why didn't you? [ ]
A. must
B. shouldn't
C. needn't
D. ought to
（）不仅仅是一种知识表示方法，也是一种流行的软件设计和开发技术。
