门槛扭矩为（）。
A.拧紧设备起动扭矩
B.拧紧设备最大扭矩
C.连接件与被连接件贴合时的扭矩
D.拧紧程序第一步结束时的扭矩
参考答案：C
More and more people were gathering there. He ________ his way through the crowed and rushed into the burning house.
A．armed
B．shouldered
C．handed
D．headed
脉形超过本部，长而不急的脉象是（）
A.紧脉
B.弦脉
C.长脉
D.革脉
E.牢脉
