有理数依次是2,5,9,14,x,27,……,则x的值是[ ]
A.17
B.18
C.19
D.20
答案:D
标有/**/的语句的执行次数是( )。 int y=5,x=2; do {y=x*x; /* */ {while(++y <5);
A.5
B.4
C.2
D.1
16,17,36,111,448,()
A.2472
B.2245
C.1863
D.1679