Trade balance = Total export value – Total import value...
单项选择题Trade balance = Total export value – Total import valueTo subtract the total value of a country’s exports from its imports, if the result is ______, then the country records a trade surplus. Conversely, if the result is ______, the country runs a trade deficit. ( ）。
A．negative, zero
B．positive, zero
C．positive, negative
D．negative, positive
