判断题 高压喷射灌浆的施工工序包括造孔、下喷射管和喷射灌浆。

判断题 If, for an imaginary closed economy, investment amounts to $10,000 and the government is running a $2,500 deficit, then private saving must amount to $12,500.

未知题型 一般而言，网络之间的信息传输量要远大于网络内部的信息传输量。（ ）