皮皮学，免费搜题
登录
搜题
【判断题】
轮胎上标示“8.25R-R20”的意义是:胎断面宽8.25英寸,R表示为子午线胎,20为轮辋直径英寸。A.
正确
B.
错误
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【单选题】____birds use their feathers for flight, some of their feathers are for others purposes.
A.
Once
B.
If
C.
Although
D.
baecause
【单选题】During daylight hours, birds ______.
A.
fly aimlessly
B.
rely on landmarks
C.
use sun for guidance
D.
are more likely to get lost
【单选题】According to the author, which is the most feasible way to protect birds?
A.
Use fences to protect all the parks in the world.
B.
Try to protect wild space and nature.
C.
Abandon the economic values that birds can bring.
D.
Rely less on agriculture and return farmlands to forests.
参考解析：
知识点：
题目纠错 0
发布
