高级语言：独立于机器，面向过程或面向（）
参考答案：对象
燃烧镁条时，夹持镁条用（ ）
A．坩埚钳
B．试管夹
C．手
D．止水夹
I understand why Sophie was angry but _____ was no need to be so rude to her brother. [ ]
A. it
B. that
C. there
D. this
