皮皮学，免费搜题
登录
搜题
【单选题】
同样数量的货币,某年购买的商品数量比上年减少了20%,则物价指数为( )。A.
25%
B.
125%
C.
80%
D.
20%
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】如图，空气（折射率n。一1）中波长为A的平行单色光，垂直入射在折射率为n1厚度为e的透明薄膜上，经薄膜上、下两个表面反射的两束光发生干涉。若薄膜下方媒质的折射率为n2，且n012，则两束反射光在相遇点的相位差为（）。
A.
4πn1e/λ
B.
2πn1e/λ
C.
4πn1n2e/λ
D.
2πn1n2e/λ
【单选题】Sandy is upset at Tamara because Tamara:
A.
pretends she's not smart
B.
Talks to much
C.
is too quiet
D.
is talktive
【单选题】She didn't come to his birthday party just ______what he had said to her the day before. [ ]
A.
because
B.
because of
C.
as result of
D.
thanks for
【单选题】Tamara, a female African American employee, arrives at work one day to find in the break room a note on a coffee pot which reads "Tamara Only." Later, she finds a similar sign on a bathroom door. Whic...
A.
exclusion
B.
mockery
C.
intimidation
D.
sexual harassment
【单选题】—Sorry, I don't know what the teacher said just now. —He asked Maria _____. [ ]
A.
how long she usually spends on her homework
B.
what she was doing these days
C.
why didn't Mike come to the meeting yesterday
D.
when the speech will begin
相关题目：
参考解析：
知识点：
题目纠错 0
发布
