衬砌背后注浆量的确定，是以（）为基础，结合地层、线路及掘进方式等，并考虑适当的饱满系数，以保证达到充填密实的目的。
参考答案：盾尾建筑空隙量
“The dignity of movement of an iceberg is due to only one -eighth of it being above water. ” This “iceberg” analogy about prose style was put forward by ________.
A．William Faulkner
B．Henry James
C．Ernest Hemingway
D．FScott Fitzgerald
示波器连续扫描方式
