全身被毛为黑色，仅肩部和颈部结合处有一圈白色被毛环绕，称为“白带猪”的是内江猪。
参考答案：错
When asked by news reporters , the film star of stage and screen that he would pay a visit to America next week.
A．confirmed
B．identified
C．proposed
D．approved
无症状性心肌缺血的诊断最主要的依据是（）。
A.既往病史
B.血清酶学检查
C.心电图检查
D.临床表现
E.X线检查
