深孔卸压爆破的地点及设计由（）负责提供。
参考答案：防冲专门机构
On receiving the admission letter from Harvard University, _____ that he stood for quite a while speechless. [ ]
A. Bruce was too excited
B. so excited was Bruce
C. so excited Bruce was
D. too excited was Bruce
心理扫描的实验研究主要集中在两个方面（）。
