As for reengaging economics with economy, the author suggests that economists should primarily______.
A．conduct research on the spirit of entrepreneurship
B．make a close examination of the market elasticity
C．offer insightful guidance in business management
D．study how a society organizes its economy

未分类题The first two paragraphs mainly show that printed books______.A．can be published in a large amountB．are identical in each copy of one versionC．go through careful editing before publicationD．are carriers of imperishable texts

未分类题To which of the following would Elizabeth Eisenstein most probably agree?A．Printing fixedness contributes greatly to the preservation of knowledge.B．Writers' desire for eloquence made typographical fixity possible.C．Standardization gave rise to textual fixity of documents.D．Impact of Gutenberg's invention is more technical than cultural.