手动变速器采用直齿滑动式换档时，待啮合的一对齿轮的（）必须相等，方能平顺地挂上档。A

Sometimes your biggest weakness can become your biggest strength. A boy, who had l  1  his left arm in a car accident, began his lessons with a Judo master(柔道大师). But after three months of hard t   2  , the master had taught him only one move. To know w  3  , the boy asked, ‘Teacher, shouldn’t I be good enough to learn more moves besides this one only?’ ‘But this is the only one you’ll ever need to have.’ was the teacher’s r _ 4  . Not quite understanding b   5   believing in his teacher, the boy continued. Several months later, the master took the boy to his first c   6   . The boy easily won his first two matches. The third match seemed to be more difficult, but after some time, his opponent(对手) became nervous and w   7   , the boy a   8  used his one move to win the match. Now his opponent was s   9   and more experienced. For a while the boy seemed weaker. The judge was about to stop the match. ‘ No .’ the teacher refused firmly (坚定地). The match went on. Just at this moment his opponent made a deadly m   10   . He dropped his guard when the boy gave him a sudden turnover: The boy was the final w  11   ! On the way home he was told why he could win: the only one known defense (防卫) for that most difficult move in Judo was for his opponent to take hold of his l   12   arm!

食管心房调搏是（）。

A.一种普通的心电图记录技术

B.一种有创伤性心脏电生理检查技术

C.一种无创伤性心脏电生理检查技术

D.一种检测心房晚电位的检查技术

E.一种判断心脏病预后的检查技术

作为施工现场的管理人员，除了遵守上述的行业道德标准以外，施工员根据自身的职责，还应做好（）。

A.科学组织，周密安排

B.按图施工，不谋非分

C.实事求是，准确签证

D.勤俭节约，精打细算

E.安全生产，文明施工

变压器试投运，空载运行时间一般为（）h。

A、6

B、12

C、24

D、48

无线电通信日志记载的内容不包括（）。

A、货物装载情况

B、处理正常通信业务的情况，包括各类窄带直接印字电报、单边带无线电话、数字选择性呼叫、卫通电传、电话和传真等通信业务的来往情况记录

C、电台通信设备和值守设备的试验情况，以及开关机时间

D、接收到的气象报告、气象传真图、航行警告和紧急信息