皮皮学，免费搜题
登录
搜题
【单选题】
当激光束通过可调狭缝后,在接收屏上出现一条清晰均匀的亮带。带缝宽小于0.1mm时,再减少缝宽,亮带反而变宽了。亮带的亮度变得不均匀,而且两边出现了明暗条纹,这是:A.
光的散射现象
B.
光的干涉现象
C.
光的衍射现象
D.
光的偏振现象
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
【单选题】【单选题20180403】具有算术运算和逻辑判断能力,并能通过预先编制的程序自动完成海量数据加工处理的现代化智能电子设备,称为__________。
A.
） 电子游戏机
B.
） 电视机
C.
） 计算器
D.
） 电子计算机
【单选题】What does the speaker want to convey by citing the remarks of Diogenes?
A.
We need to learn the skills of talking.
B.
Listening is easier than talking.
C.
Being a listener is more important than a talker.
D.
We need interesting topics in a part
【单选题】有一无吊车工业厂房，采用刚性屋盖，其铰接排架结构计算简图如下图所示。结构安全等级为二级；在垂直排架方向设有柱间支撑。混凝土强度等级为C20，纵向钢筋采用HRB335级钢，箍筋为HPB235级钢。柱子截面尺寸400mm×500mm，计算时假定a s ＝a s ′＝40mm。柱顶竖向静荷载标准值P＝400kN，并假定屋面活荷载为零。风荷载标准值q 1 ＝4kN/m，q 2 ＝3kN/m。 提示：①柱顶...
A.
1653
B.
2012
C.
2039
D.
2455
【单选题】What did Diogenes really want to express in the third paragraph?
A.
The man will be happy if his servants can wipe nose for him.
B.
The man will not be happy until he loses his freedom.
C.
The man's happiness is based on his lost freedom.
D.
The man's happiness is based on his privilege.
【简答题】Based on a series of comparison and contrast, what can be concluded on Diogenes's life philosophy?
【单选题】What kind of person is Diogenes?
A.
a lunatic
B.
a homeless
C.
a founder of Cynicism
D.
a dog
相关题目：