我国规定,楼梯段间净高不应小于()m。A.1.8 B.2.0 C.2.2 D. 发布时间:2017-07-05 13:14 │ 来源:www.tikuol.com 题型:单项选择题 问题: 我国规定,楼梯段间净高不应小于()m。A.1.8 B.2.0 C.2.2 D.2.5
题型:单项选择题 Students are always interested in finding out ________ they can to with a new teacher.A.how far B.how soon C.how often D.how long 查看答案
题型:单项选择题 △ABC中,∠A=θ-α,∠B=θ,∠C=θ+α,0°<α<θ<90°.若∠BAC与∠BCA的平分线相交于P点,则∠APC=( )A.90°B.105°C.120°D.150° 查看答案