发票的基本联次为三联，第一联为存根联，第二联为发票联，第三联为记账联，其中留在开票方的为__________和__________。
参考答案：存根联 记账联
Only when he reached the tea-house _____ it was the same place he'd been in last year.[ ]
A. he realized
B. he did realize
C. realized he
D. did he realize
声波透射法检测是利用（）在桩身中传播时声学参数的变化来判断桩的质量。
A.次声波
B.声波
C.超声波
D.特超声波
