诊断食管癌的首选方法是（）
A.食管黏膜脱落细胞检查
B.消化道钡剂检查
C.食管CT
D.内镜检查
E.超声检查
参考答案：D
Her uncle likes playing basketball, he often it on Sundays, but now he .
A．plays, is fishing
B．is playing, fishing
C．play, is fishing
D．playing, fishing
有以下程序 main( ) { int a[ ][3]={{1,2,3},{4,5,0}},(*pa)[3],i; pa=a; for(i=0;i<3;i++) if(i＜2) pa[1][i]=pa[1][i]-1; else pa[1][i]=1; printf("%d\n",a[0][1]+a[1][1]+a[1][2]); } 执行后输出结果是
A．7
B．6
C．8
D．无确定值
