
关于预激综合征的治疗,不正确的是()
A.伴正向房室折返性心动过速者,首选腺苷
B.曾经发作过房颤者严禁单独使用洋地黄
C.伴有房扑者立即行电复律
D.伴有心室率快的心房颤动者首选为普拉帕米
E.无症状可无需治疗


A.伴正向房室折返性心动过速者,首选腺苷
B.曾经发作过房颤者严禁单独使用洋地黄
C.伴有房扑者立即行电复律
D.伴有心室率快的心房颤动者首选为普拉帕米
E.无症状可无需治疗
How does competition drive ______1_______ ? First of all, it’s important to be clear that innovation isnt only about______2_______ . Innovation also includes new processes, new business systems and ______3______ — all of which have an important______4_______ on productivity and hence growth.
Take management. A recent study found ______5_______ between the companies that ______6_______ , and those that used best-practice______7_______ in their operations anagement,
performance management, and ______8_______ .
The same is true of process innovation. A study looked at how the
US auto industry ______9_______ from global competition. Between 1987 and 2002, productivity performance rose by 3.3 percent a year. But a full 45 percent of this ______10_______
but process innovation.