【简答题】#include struct y_m_d { int year; int month; int day; }date; int main () { int days ( struct y_m_d date1); printf ( "input year,month,day:" ); scanf ( "%d,%d,%d" ,& date . year ,& date . month ,& date...
【单选题】Switchboard may be open front or dead front. In the case of _____, all the moving or movable parts, switch-gear, circuit breaker, contactors, etc., are mounted behind the board, which merely shows to ...