腰麻平面达T4,心率减慢的主要原因是:()。
A.支配心脏交感神经节前纤维阻滞
B.血压下降
C.右房压下降
D.窦弓反射
E.肾上腺素能神经纤维阻滞
参考答案:A
在Oracle公司的开发工具Developer/2000中,能够生成可进行数据查询和操纵的程序的模块是
A.Oracle Forms
B.Oracle Reports
C.Oracle Graphics
D.Oracle Book
We _______ finish it ahead of time, though it was such a tough task.
A.could
B.would
C.were able to
D.ought to