【单选题】( 31 )若有以下定义和语句 char s1[10]= ' abcd! ' ,*s2= ' /n123// ' printf ( ' %d %d/n ', strlen ( s1 ) ,strlen ( s2 ) ) 则输出结果是
【单选题】2015U1-049不属于冠心病发病危险因素的是
【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).
【判断题】克莱默法则不管对于齐次方程组还是非齐次的,方程的个数必须等于未知数个数时候,才可以使用。( )
【判断题】塑性指数越大,黏土的塑性变化范围越大,黏土的塑性越好,黏性越大。