有一分数序列: 2/1 , 3/2 , 5/3 , 8/5 , 13/8 , 21/13 , ... 以下出这个数列的前 20 项之和。 # include < stdio.h > void main ( ) { int i, t ; float a = 2, b = 1, s = 0; for ( i = 1; i <= 20; i++ ) { s = ; t = a ; a = ; b = ; } printf ( “sum = %9.6f \n ”, s ); }
【简答题】用am, is, are填空。 1. I _____Sam Green. 2. His name ______Bill Gates. 3. ______ your telephone number 2283412? 4. You ______Tom. 5. It ______my Chinese book.