皮皮学，免费搜题
登录
搜题
【单选题】
图片配件名称()A.
齿轮
B.
同步器
C.
结合套
D.
毂
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
【简答题】Traffic rules help to keep order on the road. They also help to keep people 1 . The pedestrian(行人) has as many rules to 2 as the driver of a car. You should walk on the sidewalk(人行道) or at the side of...
【单选题】The traffic was making so much noise that i couldn't hear what he( ).
A.
is saying
B.
was saying
C.
has said
D.
will say
【单选题】一个顶端开口的圆形容器，在容器的底部开一横截面积为1cm 2 的小孔，水从桶的顶端以100cm 3 /s的流量注入桶内，则桶中水面的最大高度为（）（g=10m/s 2 ）
A.
h=0
B.
h=3.0cm
C.
h=20.35cm
D.
h=10cm
相关题目：
参考解析：
知识点：
题目纠错 0
发布
