89. Was this piece of earthenware(陶器) made       machine or _____ hand?

A．by; by

B．with; by

C．with; with

D．by; with

鼻窦恶性肿瘤中，最常见的发病部位为（）。

A.额窦

B.上颌窦

C.蝶窦

D.筛窦

E.以上都不是