【单选题】moDErn soCiEtiEs ArE suCh ComplEx thAt thEy CoulD not Exist without A wEll-DEvElopED systEm oF lAw.
【单选题】 Diamond is the hardest known substance, so diamond can be cut only by another diamonds.
【单选题】 The word "heightened" in line 18 is closest in meaning to
A．( complicated
B．( directed
C．( observed
D．( increased
A．( complicated
B．( directed
C．( observed
D．( increased
【单选题】 According to the passage, all of the following are true of ancient Greek potters and vase painters EXCEPT:
A．( Their functions were so specialized that they lacked common concerns
B．( They sometimes produced inferior ware
C．( They produced pieces that had unusual color and shine
D．( They decorated many of their works with human images
A．( Their functions were so specialized that they lacked common concerns
B．( They sometimes produced inferior ware
C．( They produced pieces that had unusual color and shine
D．( They decorated many of their works with human images
【单选题】 What does the author say in paragraph 1 regarding most species in Earth's history
A．( They have remained basically unchanged from their original forms
B．( They have been able to adapt to ecological changes
C．( They have caused rapid change in the environment
D．( They are no longer in existence
A．( They have remained basically unchanged from their original forms
B．( They have been able to adapt to ecological changes
C．( They have caused rapid change in the environment
D．( They are no longer in existence
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