适用于需要减少基础振幅、减弱基础振动或控制基础沉降和沉降速率的精密、大型设备的是()。
A.桩基础
B.沉井基础
C.大块式基础
D.减振基础
参考答案：A
The first use of atomic weapons was in 1945.And their power _______ increased enormously ever since.
A．is
B．was
C．has been
D．had been
五心穴
