对于采用平衡重的悬挂机构,支承后支架的支撑点,()承受由支架传来的集中荷载。
A.能
B.不能
C.应该能
参考答案:C
It's very difficult to satisfy the manager for he has already________ three applicants this morning.[ ]
A. turned away
B. turned out
C. turned to
D. turned off
关于静脉窦血栓的病因,叙述错误的是()
A.除常见原因,仍有35%患者病因不明
B.妊娠相关颅内静脉及静脉窦血栓形成(CVST)发生率为7%~14%,孕期发生率远大于产后
C.遗传性血栓形成占所有病因的20%~30%
D.感染性静脉窦血栓发生率为6%~12%
E.儿童及海绵窦血栓特别须注意感染因素