夯实水泥土桩基础边缘距离最外一排桩中心的距离不宜小于（）桩径。
A.1倍
B.2倍
C.3倍
D.4倍
参考答案：A
One solution to major security problem is __( )__ ，which are frequently installed to fix known security holes.
A．patches
B．compensations
C．complements
D．additions
果品在面点制作中可作馅料，是较好的（）原料。
A、甜馅
B、咸馅
C、生馅
D、熟馅
