机床加工过程中切削力所产生的负载转矩是反抗性转矩。
参考答案：对
13 ._______, he is famous for writing blogs.
A． As he is a teacher
B． A teacher as he is
C． A teacher although he is
D． teacher as he is
脾脏常见的恶性肿瘤是 （ ）
A．血管瘤
B．淋巴肉瘤
C．血管肉瘤
D．脂肪肉瘤
E．畸胎瘤
