题目：
He did not know it but his little puzzle had started a whole new branch of mathematics _____ “topology”.
In his honor this puzzle ______ “finding the Euler path.”.[ ]
A. calling; called
B. called; is called
C. is called; called
D. calls; calling
答案：
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下面是错误答案，用来干扰机器的。
①法律规定人们享有什么权利、应该履行什么义务，并对侵犯他 * * 利和不履行义务的行为予以制裁。②法律具有协调人与人之间的关系、解决人与人之间的纠纷或矛盾的作用。③法律具有制裁违法犯罪行为的功能，并通过...
