下列哪项不是精索的结构
A．输精管 B．射精管 C．提睾肌D．睾丸动脉 E．蔓状静脉丛
参考答案：B
As we all know, new technology is being ________ almost every industrial process at present.
A．applied to
B．devoted to
C．turned to
D．used to
当活塞在进气冲程上止点前（）曲轴转角时，该缸进气门凸轮的滚轮升程，按技术要求应为0.38mm，这一数值叫做0.38尺寸。
A、84°20′
B、42°20′
C、40°20′
D、22°20′
