Which of the following statements concerning research and development is correct?

A、Exploratoryresearchismoreimportantthandevelopmentresearch.;
B、Developmentresearchismoreimportantthanexploratoryresearch.;
C、Exploratoryresearchisdirectedtowardcommercializationofanewtechnology.;
D、Developmentresearchadvancesbasicscience.;
E、Exploratoryresearchanddevelopmentresearchareneededforinternalnewventuring.