劈裂作用
A．硬而脆B．硬而韧C．硬而坚D．中等硬脆E．中等坚韧且黏
参考答案：D
---How do you find the movie you saw last night?
---_______. I just saw half of it
A．disappointment
B．disappointed
C．disappointing
D．disappointingly
构成生物体结构和功能的基本单位是组织。
