腭扁桃体位于()
A.腭舌弓和舌根之间
B.腭舌弓和腭咽弓之间
C.腭咽弓和咽侧索之间
D.咽侧索和咽后壁之间
E.硬腭和软腭之间
参考答案:B
Assume a company's ROE is 14% and the required return on equity is 13%. All else remaining equal, if there is a decrease in a firm's retention rate, a stock's value as estimated by the constant growth dividend discount model (DDM) will most likely:()
A. increase.
B. decrease.
C. not change.
随着矿井电机车运行速度的提高,载重和运量的增加,()kg/m以上钢轨已开始在煤矿井下使用。
A、10
B、20
C、30
D、40