【单选题】sub sum_of_fred_and_barney{ print "Hey,you called the sum_of_fred_and_barney subroutine.\n"; $fred+$Barney; print "I'm returning a value now.\n"; } $fred = 3; $barney = 4; $chr1 = &sum_of_fred_and_bar...
A.
Hey,you called the sum_of_fred_and_barney subroutine. print "I'm returning a value now. 7 Hey,you called the sum_of_fred_and_barney subroutine. print "I'm returning a value now. 21
B.
1 3
C.
Hey,you called the sum_of_fred_and_barney subroutine. print "I'm returning a value now. 1 Hey,you called the sum_of_fred_and_barney subroutine. print "I'm returning a value now. 3
【简答题】阅读理解。 At first, Betty and Barney felt comfortable in the alien space station. They were not afraid because the aliens were very friendly. They stood around and looked at them. Some of them pointed at ...