齐次坐标系就是n维空间中物体可用()齐次坐标来表示。A.n维 B.n+1维 C.n- 发布时间:2017-10-29 22:31 │ 来源:www.tikuol.com 题型:单项选择题 问题: 齐次坐标系就是n维空间中物体可用()齐次坐标来表示。A.n维B.n+1维C.n-1维D.n+2维
题型:单项选择题 Judy with her brother _______ computer games when her mother came back.[ ]A. were playing B. are playing C. was playing D. is playing 查看答案
题型:单项选择题 男,40岁,近数月来发现排尿后 * * 灼痛, * * 口溢出白色黏液,会阴部及腰背部酸痛,性欲减退,乏力。前列腺液检查:卵磷脂小体少量,白细胞20~30/HP。应诊断为()A. * * 炎B.慢性前列腺炎C.膀胱炎D.腰肌劳损E. * * 结石 查看答案