关于胰腺癌正确的是()
A.主要是指胰外分泌腺腺癌
B.是胰腺内分泌腺腺癌
C.慢性胰腺炎患者发病率较高
D.与内分泌可能有关
E.与遗传因素无关
参考答案:A, C, D
— Has Wendy handed in her application form?
— Not sure. She told me that she wanted to check again and it in soon.
A.will hand
B.would hand
C.has handed
D.had handed
耐氟酸工程选用硫酸钡粉、石墨粉作为沥青砂浆的粉料。( )