据西方一些国家分析，设计费一般只相当于建设工程全寿命费用的（）以下。
A. 1%
B. 2%
C. 3%
D. 4%
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A. It is a platform. for sharing ideas on teaching at the University of Illinois．
B. It was mainly used by scientists and technical people to exchange text．
C. It started off as a successful program but was unable to last long．
D. It is a program allowing people to share information on the Web．
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Arranging the woman"s appointment with Mr．Romero．
B. Fixing the time for the designer"s latest fashion show．
C. Talking about an important gathering on Tuesday．
D. Preparing for the filming on Monday morning．
What does the author imply about Boston？ 查看材料
A. It has pleasant weather all year round．
B. It produces wealth as well as high-tech．
C. It is not likely to attract lots of investors and nerds．
D. It is an old city with many sites of historical interest．
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