结合图像，最可能的诊断是（）
A.胰腺癌
B.胰岛细胞癌
C.胰腺囊腺癌
D.胰腺炎
E.以上都不是
参考答案：B
________ was known to us all that Johnson had broken his promise ________ he would give each of
us a small gift.[ ]
A．As; which
B．What; that
C．It; that
D．It; which
尿素中总氮的质量分数达到46.5%即为优级品。( )
