－Hello, Mary! This is John. You must know why I _________ you.

－Oh, hello, John! I've waited for this call since last month.

A．called

B．am calling

C．was calling

D．have called

下述诸项病因中最易导致妇产科疾病的是（）

A.寒、热、湿

B.风、寒、湿

C.风、湿、热

D.寒、暑、湿

E.暑、湿、热