Scientists can go on the stem cell research because ______.
A. scientists spurn the government and Mr. Bush's veto.
B. other countriesare enthusiastically experimenting on embryonic stem cells.
C. Mr. Bush's veto does not stop stem cell research completely.
D. all the scientists in America are furious with Mr. Bush.
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The purpose of Paragraph 2 is to ______.
A. show privatized water is world's direction to solve water crisis.
B. explain why $37 billion will be invested to solve the problem of water shortage in Saudi Arabia.
C. show Saudis consumed too much water even though Saudi Arabia is the driest parts of the globe.
D. call for government to find more solutions for water conservation.
The word "grumble" (Line 1, Paragraph 2) most probably means ______.
A. mutter.
B. phenomenon.
C. complaint.
D. gamble.
Melissa Mahan's story is mentioned in the text to ______.
A. show tourism of Netherlands is no better than that of US.
B. introduce the topic of Location-based services by GPS.
C. show that they are dissatisfied with traveling.
D. explain the reason why they start a new company.
What is the author's attitude towards cattlemen？
A. Combative.
B. Contemptuous.
Compassionate.
D. Compromising.
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