对T形件，为提高材料的利用率，应采用（）。
A、多排
B、直对排
C、斜对排
参考答案：C
Hobbies offer knowledge and relaxation. ___, they help improve one’s mental and physical health.
37.
a. Furthermore b. However c. Therefore d. Partly
骨样骨瘤典型X线特征是
A．直径不超过2cm的瘤巢及伴有周围硬化
B．好发于胫骨
C．发生于松质骨很少出现钙化
D．起源于骨膜下者为紧贴骨质的软组织肿块
E．好发于尺桡骨
37. 
r c. Therefore d. Partly