【单选题】which one is not a quick-return mechanism?
A.
a double rocker mechanism
B.
a crank-rocker mechanism
C.
a guider-bar mechanism
D.
a in-line slider crank mechanism
【单选题】由经营者自主制定,通过市场竞争形成的价格是
【单选题】自动布线完成以后,最重要的一步是(),只有完成这一步,才能确保电路板设计正确无误
【简答题】应对机制(coping mechanism)
【单选题】由经营者自主制定,通过市场竞争形成的价格是
【单选题】-¿ Adónde vas? -_________ al supermercado.
【单选题】The sewing machine is A.double-rockermechanism B.double crank mechanismC.crank-rocker mechanism D.rocker-crank mechanism
A.
. double-rocker mechanism
B.
. d ouble crank mechanism
C.
. crank-rocker mechanism
D.
. rocker-crank mechanism