The phrase 'merger between physical and digital environments'(Line 4, Para. 4)means______.
A．connection between city residents and the data they produce
B．combination of existing infrastructures and the internet
C．joining of real-life neighbourhoods and virtual communities
D．integration of the urban world and the data it generates

未分类题The last sentence in Paragraph 6 implies that instant messaging______.A．may produce negative effect in curbing crimeB．might cause harm to citizens' privacyC．encouraged the occurrence of London riotsD．contributed greatly to the suppression of London riots

未分类题The first two paragraphs imply that in group decision-making______.A．human beings are anything but as smart as honeybeesB．human beings seldom employ democracy as honeybees doC．human beings have yet a lot to learn from honeybeesD．human beings make a discussion without a decision as honeybees do