皮皮学，免费搜题
登录
搜题
【单选题】
J. Smith was preparing the December 31 year-end financial statements for her company, Smith’s Used Vehicles. On the December 25, the company sold a car that it had not yet paid for. J. Smith did not record the cost of the car as an expense in the year-end income statement because she did not think it was appropriate to expense something that had not yet been paid for. Which of the following fundamental concepts of accounting has she failed to follow? ( )A.
separate entity assumption
B.
cost principle
C.
matching principle
D.
full disclosure principle
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【简答题】设f(x)在[a，b]上为正值的连续函数(a＞1)，在(a，b)内可导,试证至少存在一点c∈(a，b)，使得
【单选题】下列运算正确的是（ ）
A.
（a -1 b 2 ） 3 = b 6 a 3
B.
1 R 1 + 1 R 2 = 1 R 1+2 = 1 R 3
C.
（a -1 b 2 ） 3 = b 5 a 3
D.
1 R 1 + 1 R 2 = 2 R 1 + R 2
【简答题】设f(x)在[a，b]上为单调增加，且取正值的连续函数(a＞O)，证明存在v∈(a，b)，使 a 2 f(b)+b 2 f(a)=2ξ 2 f(ξ)
【简答题】设n×n矩阵函数A(t)在[α，β]上连续，n维向量函数f(t，x)在区域α≤t≤β，｜x｜＜∞上连续．证明初值问题 等价于求解积分方程 其中t，t0∈[α，β]，X(t)是相应齐次线性方程组的基解矩阵．