液面波是从液面位置反射到（）并被记录在回声仪记录曲线上的波。
参考答案：井口
报检人有特殊要求使用其他语种签证的，应由申请人提出申请，经审批后予以签发( )
Which of the following choices best describes the effects on consumption, investment, and net exports that would result from an increase in the price level, other factors held constant Consumption Investment Net exports（）①A. Decrease Decrease Decrease ②B. Decrease Increase Increase ③C. Increase Decrease Decrease
A. ①
B. ②
C. ③
