【单选题】若有以下定义和语句: char*s1='12345',*s2='1234'; printf('%d/n',strlen(strcpy(s1,s2)));则输出结果是______。
【单选题】City Y has installed 30 parking meters at 15-foot intervals along a straight street. What is the number of feet between the first meter and the last meter?
【判断题】内控型的人相信外部力量决定着他们的命运。
【单选题】若有以下定义语句: char * sl='12345', * s2='1234'; printf('%d'n',strlen(strcpy(s1,s2))); 则输出结果是 ( )
【单选题】An economy has IS and LM curves given by R = 25 - 2 Y; R = - 10 + 0.5M + Y; where R is the interest rate (percent), Y is GNP ($ billions), and M is the money supply. The government has a target for GN...
A.
Since Y =7.5, R=10 (percent), M=25($ billions).
B.
Since Y =7.5, R=20 (percent), M=15($ billions).
C.
Since Y =7.5, R=10 (percent), M=15($ billions).
D.
Since Y =7.5, R=20 (percent), M=25($ billions).
【单选题】若有定义语句:“char*s1=”0K”,*s2=”ok”;”,以下选项中,能够输出“OK”的语句是( )。
A.
if(strcmp(sl,s2)= =0)puts(s1);
B.
if(strcmp(sl,s2)!=0)puts(s2);
C.
if(strcmp(sl,s2)= =l)puts(s1);
D.
if(stremp(sl,s2)!=0)puts(s1);
【单选题】Yoram insists on consuming 3 times as much y as he consumes of x (so he always has y = 3x). He will consume these goods in no other ratio. The price of x is 2 times the price of y. Yoram has an endowm...
【简答题】A firm has a cost function given by c(y)=40y 2 +4000. What is its supply curve? At what output is average cost minimized?