螺旋CT数据采集的扫描方式为（）。
A.容积扫描
B.动态扫描
C.超高速扫描
D.二维扫描
E.同层扫描
参考答案：A
She is not on good terms with Mr. Smith; ______even if invited she would not attend his party.
A．otherwise
B．however
C．besides
D．therefore
当穿过线圈内的磁通发生改变时，不一定产生感应电流。（）
