—I didn't hear you come in just now.
—That's good. We tried __________ any noise, for you were sleeping.
A：not make
B：not to make
C：to make
D：making
一四____
我国著名史学家钱穆在《中国历代政治得失》一书中讲到：“汉宰相是采用领袖制的，而唐代宰相则采用委员制。”这里的委员制是指（ ）
