When the robber with a knife came towards me,l picked up a stick to _______ myself. [    ]

A. prevent        

B. stop            

C. defend          

D. defense

下列不表示假设含义的是（）

A."使辨之不力，将终无救正日矣"中的"使"

B."其于至道未明，而欲冀夫通神运微，断乎不能矣"中"其"

C."若乃分天地至数，别阴阳至候"中"若乃"

D."自非才高识妙，岂能探其理致哉"中"自"

E."则圣人不和启金滕，贤者曷为条玉版"中"则"