下图是生态系统碳循环过程示意图，其中A、 B、 C、D组成生物群落。请据图分析回答：在能
题型：填空题 案例分析题
问题：
下图是生态系统碳循环过程示意图，其中A、B、C、D组成生物群落。请据图分析回答：
在能量流动过程中，能量从B到A的传递效率大约为（）
题型：填空题 案例分析题
Dear One Family Members,
First, please accept our great thanks for your support, trust and donations towards our Ya’an earthquake relief (救济) work!
Recently, many worries were brought to our attention, and we managed to provide answers to some common questions.
Please read the Q&A in the following:
Q: Where may I find the latest news on One Foundation’s Ya’an earthquake relief work?
A: We warmly welcome you to visit our website, Sina Weibo, Tencent Weibo and you could get
all the news from there.
Q: How may I donate to One Foundation from abroad?
A: Thank you for your kind heart and support. At present, there are two official channels for
donations from abroad: Bank transfer and PayPal.
Q: How may I get a donation receipt (收据)?
A: If you have donated more than 20 U.S. dollars, please send your personal information to
idonation@one-foundation.com. We will send the e-receipt by the end of May.
Because of the large number of donations we have received recently, try as we might, we may
not be able to send the receipt soon enough. Thank you very much for your patience.
Once again, we give our faithful thanks to you. We will carefully plan and use the donations from every One Family Member and we will do our best to help those who need your support. One Foundation
May 9, 2013
小题1:______ about donating to One Foundation are answered in this passage.
A．Some questions
B．Few questions
C．All the questions
D．No questions小题2:You can get up-to-date information by visiting the following websites except ______.
A．Tencent Weibo
B．Sina Weibo
C．the website of Red Cross
D．the website of One Foundation小题3:How many official channels for donations from abroad are mentioned?
A．One.
B．Two.
C．Three.
D．Four.小题4:Why can’t One Foundation send the receipt soon?
A．Because there aren’t enough receipts.
B．Because there are a large number of donations.
C．Because the people in the foundation are not experienced.
D．Because the people in the foundation are not hard-working.小题5:Which of the following sentences is TRUE according to the passage?
A．One Foundation won’t accept donations from abroad.
B．One Family Members are trying to help people in Ya’an.
C．No worries were brought to One Foundation’s attention.
D．One Foundation will send e-receipts to all the people who have donated.