为男性导尿时,提起阴茎使之与腹壁成60°,目的是( )
A.扩张 * * 内口B.扩张 * * 外口C.扩张 * * 膜部D.使耻骨前弯消失E.使耻骨下弯消失
参考答案:D
Most scientists seem to agree that _____ certain limit should be set on _____ consumption of cars to ease air pollution. [ ]
A. a; the
B. /; the
C. the; /
D. the; the
若a,b,c1,c2,x,y均是整型变量,正确的switch语句是( )。
A.switch(a+
B.switch(a*a+b*{ case:y=a+b;break; { case 3: case:y=a-b;break; case 1:y=a+b;break;} case 3:y=b-a;break; }
C.switcha
D.switch(a-{ casec1:y=a-b;break;{ default:y=a*b;break; casec2:x=a*b;break; case 3:case4:x=a+b;break; default:x=a+b;case 10:case 11:y=a-b;break;}}