How many handouts will the man have to prepare？
查看答案
In the United States, the only pollutant for which there is a national air quality standard is lead.
A. Y
B. N
C. NG
听力原文：It's too cloudy, isn't it？
听力原文：W: Who opens the window？
M: Oh. I'm too hot.
What does the man mean？
A. He is too hot.
B. He opens the window.
C. He doesn't like to open the window.
What is true about the discount？
A. You need a coupon to get a discount.
Business people can get Business World at a reduced price.
C. 25% discount is only for someone who subscribes before January 1st.
D. Business World gives 50% discount to the journalists.
微信支付 
支付宝支付