is defined as the statistical record of a country's international transactions over a certain period of time presented in the form of a double-entry bookkeeping.
B.
provides detailed information concerning the demand and supply of a country's currency.
C.
can be used to evaluate the performance of a country in international economic competition.
【简答题】以下程序用于判断 a 、 b 、 c 能否构成三角形,若能,输出 YES ,否则输出 NO 。当给 a 、 b 、 c 输入三角形三条边长时,确定 a 、 b 、 c 能构成三角形的条件是需同时满足三个条件 : a+b>c , a+c>b , b+c>a 。请填空。 main() { float a,b,c scanf(' % f % f % f',&a,&b,&c) if( 【 7 】 )pri...