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题库 / Prep2008E2-SC-218
In attempting to solve the problems caused by a lowering of the price of oil, oil companies operating in the North Sea have taken a variety of approaches, which includes their reducing employment, using new technology to pump oil more efficiently from smaller fields, and finding innovative ways to cut the cost of building and operating platforms.
which includes their reducing employment, using new technology to pump oil more efficiently
which includes reducing employment, using new technology to be more efficient in pumping oil
which include reducing employment, using new technology to pump oil more efficiently
which include the reduction of employment, their using new technology to pump oil more efficiently
including a reduction of employment, their use of new technology to be more efficient at pumping oil
1.主谓一致，AB错
2.平行，DE错
3.措辞,at doing才是正确用法,B错
4.句意推理their use of...不仅改变了句意，而且不需要their，DE错
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