判断题

Boomerangs were first used by Australian Aborigines as weapons when they were hunting. 



点击查看答案

你可能感兴趣的试题


单项选择题

x = +0.0111,y = –0.1011,求[x·y]补

A.-.10110011
B.1.10110011
C.-0.10110011
D.-0.01001101