以下关于涎腺良性混合瘤的描述，错误的是（）

A.多见于腮腺

B.中年女性多见

C.生长缓慢

D.大多数有钙化

E.又称多形性腺瘤

If the vertical center of gravity (VCG)of a ship rises 1.7 feet,the righting arm (GZ) for the various angles of inclination will（）.

A.decrease

B.increase

C.remain unchanged

D.be changed by the amount of GG'x cosine of the angle