[填空题]The author mentions the fact that Andy has changed her computers 5 times in the past 9 years with the intention to illustrate that e-waste is a wide-spread problem.

[填空题]Why does the author say Newton has a unique sense of humor

[单项选择] Intel chairman Andy Grove has decided to cut the Gordian knot of controversy surrounding stem cell research by simply writing a check. The check, which he pledged last week, could be for as much as $5 million, depending on how many donors make gifts of between $50,000 and $500,000, which he has promised to match. It will be made out to the University of California-San Francisco (UCSF). Thanks in part to such private donations, university research into uses for human stem cells — the cells at the earliest stages of development that can form any body part — will continue in California. With private financial support, the state will be less likely to lose talented scientists who would be tempted to leave the field or even leave the country as research dependent on federal money slows to a glacial (极其缓慢的) pace. Hindered by limits President Bush placed on stem cell research a year ago, scientists are turning to laboratories that can carry out work without using federal mo
A. put an end to stem cell research
B. end Intel’’s relations with Gordian
C. settle the dispute on stem cell research quickly
D. expel Gordian from stem cell research for good

[填空题]The fact that space exploration has increased dramatically in the past thirty years indicates that we are very eager to learn all we can about our solar system.