题目内容：
Whatcanweknowaboutthemarketeconomyfromthesentences"It'snotliketheolddays,...Ifcompaniesdon'tinnovate,theydie..."? A．Themarketeconomyismoredevelopedthaneverbefore.
B．Innovationisonedecisivefactorincompanies'survival.
C．Customersarenolongersatisfiedwiththeproductsofferedbycompanies.
D．Companieswilldieiftheyignorethecustomers'interest.
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答案解析：