Thechallengeisnotoneofexpansion._______,therapidgrowthinenrollmentoverthelast40yearshascometoanend.
D
本题考查介词词组的词义辨析。四个词组分别表示“因此”、“务必”、“相比之下”和“相反”之意。
Therearemanysalesthisseason,duringwhichstoreswilllowertheir_______prices.
Toaworker,________fromthepointofviewofsocietyisnecessarylaborisfromhisownpointofviewvoluntaryplay.