考试的中心环节是()。
A．阅卷
B．监考
C．测验
D．命题
参考答案：D
解析：考试主要包括命题、监考、阅卷三个阶段，其中命题是核心环节。
The government tried its best to _____ the people’s needs, but the people were still not ______. In fact, what the government did was not______.
A．satisfy; satisfied; satisfying
B．satisfy; satisfying; satisfied
C．satisfied; satisfied; satisfying
D．satisfying; satisfied; satisfied
实验动物作为人类的（）和最复杂的“精密仪器”是无法被其他方法所彻底替代的。
A.朋友
B.邻居
C.竞争者
D.替难者
