【单选题】In principle, the legislative pwoer is under the control of _______, the executive power is in the hand of ______, the judiciary is in the charge of _____ .
【简答题】Under U.S.GAAP, an asset is considered impaired if its book value is: A.less than its market value. B.greater than the present value of its expected future cash flows. C.greater than the sum of its un...