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【单选题】
听力原文：Investment in the public sector, such as electricity, irrigation, quarrying, public services and transport increased by about 10%, although the emphasis moved to transport and away from the other sectors mentioned. Trade and services recorded a 16- 17% investment growth, including a 30% increase in investment in business premises. Industrial investment is estimated to have risen by 8%. According to the speaker, the area of greatest expenditure of investment funds occurred in ______.A.
public sector
B.
business premises
C.
industrial sector
D.
trade and services
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