欠平衡井起钻时每起三柱钻杆或一柱钻铤时要灌满钻井液一次。()
参考答案:错
The painting was what it used to be because it was once watered by rain.
A.something like
B.nothing like
C.anything like
D.nothing at all
对于具有明显的外部效益但财务生存能力不足的项目,为了保证项目能够实施,以使其外部效益能够相应地发挥出来,政府一般通过( )等方式,对企业参与这类项目的投资建设予以鼓励和支持。
A.制定优惠政策B.直接拨款C.无偿提供土地D.转移支付