皮皮学，免费搜题
登录
搜题
【单选题】
( )具有很强的脱色和去污能力,特别适用于印染厂废水处理。A.
氧气
B.
氢气
C.
空气
D.
臭氧
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】When the economy is in recession, jobs are generally harder to find and more people go to college. We can conclude that the opportunity cost of
A.
going to college decreases when the economy is in recession.
B.
going to college increases when the economy is in recession.
C.
working increases when the economy is in recession.
D.
working is zero when the economy is in recession.
【简答题】骨盆是由 、 及 所组成
【单选题】amici vecchi
A.
amici anziani
B.
amici da tanto tempo
C.
uomo molto famoso e importante
D.
uomo molto alto
【单选题】vecchi amici
A.
amici anziani
B.
amici da tanto tempo
C.
uomo molto famoso e importante
D.
uomo molto alto
【简答题】A．NRZ B．AMI C．曼彻斯特 D．4B/5B
【单选题】When the national economy is faced with a recession or high inflation, the government engages in active policies with timely attempts to move the economy back ______.
A.
with the right track
B.
on the right track
C.
for the right track
D.
in the left track
【单选题】Bill is a high-school drop out who lost his job in a fast food restaurant when the economy plunged into a recession. After 8 months, Bill is still looking for work. He is an example of
A.
frictional unemployment.
B.
structural unemployment.
C.
cyclical unemployment.
D.
the natural unemployment rate
相关题目：
参考解析：
知识点：
题目纠错 0
发布
