招投标工程量计算中，土方施工中体积大于( )m3孤石开挖应按石方开挖计量。
A．0.5
B．0.6
C．0.7
D．0.8
参考答案：C
—Has he been in Jinan since 2001?
—Yes. He _____ here eight years ago.[ ]
A. come
B. came
C. is coming
D. has come
TBA22A418卡控制（）A419控制（）A420控制（）
. has come