C++题库+参考答案

\rstruct A\r{int c9\runion U u9\r}a9\rA) 4 B) 5 C) 6 D) 8\r13ß?^\rfkl?\rma i n ()\r(struct date\r{i nt year , month, day9\r}today9\run i on\r{ long i9\ri nt k9\rchar c9\r} mix9\rcout?sizeof(struct date)?y ' ?sizeof(mix)9\r)\rA) 6 2 B) 6 4 C ) 8 4 D) 8 6\r14ß\n^\rfkl?\rtypedef un i on\r{long x[2]9\ri nt y [4]9\rchar z[8]9\rJMYTYPE9\rMYTYPE them9\rma i n ()\r( cout?s i zeof (them) 9 }\rA) 32 B) 16 C) 8 D) 24\r15ß1„“\r†a'9I i ning\r>?ò‹=ó“\r?\rstruct person\r(char name[20]9\ri nt age9\rchar sex9\r} a= {Lz I i ning”, 20, 'm'}, *p=&a;\rA) (*p). name B) p. name C) a. name D) p->name