[单项选择]下面程序的功能是输出以下形式的金字塔图案是： 　　　　　　　　　　　　　　　　　 * 　　　　　　　　　　　　　　　 　* * * 　　　　　　　　　　　　　　 　* * * * * 　　　　　　　　　　　　　 　* * * * * * * 　　main(　) 　　{　int i,j; 　　　for(i=1;i<=4;i++) 　　　{　for(j=1;j<=4-i;j++)printf( “ ” ); 　　　　for(j=1;j<=_______;j++)printf(“*”); 　　　　printf(“/n”);}} 　　在下划线处应填入的是（ ）。
A. i
B. 2*i-1
C. 2*i+1
D. i+2

In the past hundred years a million people have died in earthquakes, another million have been killed by{{U}} (36) {{/U}}and tornadoes and 9 million have lost their lives in floods. In addition to this many millions more have died as a result of famine and disease. We should also not forget in many of the world’s countries{{U}} (37) {{/U}}, chronic water shortage, is a fact of life, especially in the African Sahel region{{U}} (38) {{/U}}the Sahara desert.
Scientists and engineers around the world have made great advances in earthquake engineering. It is, of course,{{U}} (39) {{/U}}physically to move cities such as Tokyo and San Francisco that have been built in earthquake{{U}} (40) {{/U}}. But most often it is not the earthquake that{{U}} (41) {{/U}}people, it is the{{U}} (42) {{/U}}buildings, bridges and other structures that cause deaths, and the{{U}} (43) {{/U}}of that happening can be greatly reduced by better buildi