正确答案: B

GDP

题目：（）is a measure of the market value of all goods and services within the boundaries of a nation.

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学习资料的答案和解析：

[单选题]As we are（）urgent need of Art.No.5609，please ship our order with out delay.

in

[单选题]We（）the seminar sponsored by you in September last year.

are aware of