下面程序的运行结果为 #include＜iostream．h＞ void main() { char a=’3’； switch(a) {case’3’：cout ＜＜"3"；case’2’：cout ＜＜"2"；break；default：cout ＜＜"1"； } }

A．3

B．321

C．31

D．32

We are glad to receive your telegraphic order of May 6 ______ regret that we can- not supply the goods ______ the end of May.

A. but, by



B. and, by
C. but, for



D. and, for