单句改错Believe it or not! The new train can travel at a speed of sound.单句改错 Believe it or not! The new train can travel at a speed of sound.

with a clear SOW a contractor completes work as specified,but the buyer is not pleased with the result.the contract is considered to be （）A．incomplete because the buyer is not pleasedB．incomplete because the specs are incorrectC．compete because the contractor meets the terms and conditions of the contractD．complete because the contractor is satisfied