只需在仓储过程中,对配件进行防腐防蚀。
参考答案:错
Jack’s grandfather ________for more than twenty years.
A.has dead
B.has died
C.has been died
D.has been dead
垂体瘤不包括()
A.生长激素瘤
B.生殖细胞瘤
C.PRL瘤
D.ACTH瘤
E.TSH瘤