皮皮学，免费搜题
登录
搜题
【单选题】
听力原文： The City of Toddleston would like to make the following announcement to its residents. Beginning in June, construction along the main highway will begin for the next 3 weeks. This means that the freeway will be closed to all motorists at that time. Citizens who use the highway are encouraged to take Kyle side road instead. The construction is expected to be completed by no later than June 25. After that time, the highway will reopen and all residents are invited to make use of the newly renovated highway as they desire. Any questions or concerns should be directed to Mr. Gary Taylor at Town Hall. What is the purpose of the radio announcement?A.
There will be construction.
B.
A side road is being built.
C.
A new highway is being constructed.
D.
The highway is being permanently shut down.
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【多选题】粉尘安息角是评价粉尘流动特性的重要指标。以下哪些说法正确?
A.
安息角小的粉尘，其流动特性好
B.
安息角是设计除尘器灰斗锥度和系统管路倾斜度的主要依据
C.
对于一种粉尘，粒径越小，安息角越小
D.
粉尘含水率增大，安息角增大
【单选题】若 一 个栈的输 入 序列为 1,2,3,...,n ,输出序列的第 1 个元素是 i ,则第 j 个输出元素是
A.
i-j-1
B.
i-j
C.
j-i+1
D.
不确定
【单选题】粉尘安息角是评价粉尘流动特性的重要指标。以下哪个说法不正确？
A.
安息角 小的粉尘，其流动性好
B.
安息角 是 设计 除尘器 灰 斗锥 度 和系统管路倾斜度的主要依据
C.
对于 一种粉尘， 粒径 越小，安息角越小
D.
粉尘 含水率增加，安息角增大
相关题目：