Alotofnewtechnology_intoschoolstomakelearningmoreeffectivetheseyears.AintroducedBhasintroducedCwasintroduecedDisbeingintroduced?

D is being introduced, meaning it is being brought in or introduced to the context. It is important to note that in this context, the word "introduce" refers to the act of bringing something new into the situation rather than presenting or introducing it to someone. This is similar to how Lu Xun used the term "绍介" when discussing woodblock prints. It is important to pay attention to this distinction and not confuse it with the meaning of "introducing someone to someone else." The noun "introduction" also carries a different meaning in this context.