皮皮学,免费搜题
登录
搜题
【简答题】
如图,设E: =1(a>b>0)的焦点为F 1 与F 2 ,且P∈E,∠F 1 PF 2 =2θ.求证:△PF 1 F 2 的面积S=b 2 tanθ.
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
【单选题】某企业采用分批法计算产品成本。3月份投产的产品情况是:1日,投产甲产品4件, 乙产品3件;16日,投产甲产品5件,丙产品3件;25日,投产甲产品4件,丁产品5件。该企业3月份应开设的产品成本明细账的个数是( )。
A.
6
B.
5
C.
4
D.
3
【单选题】Now the Internet has been accepted as the ______ technology to many other methods in colleges and universities.
A.
required
B.
focused
C.
preferred
D.
adopted
【单选题】某企业采用分批法计算产品成本。3月份投产的产品情况是:1日,投产甲产品4件, 乙产品3件;16日,投产甲产品5件,丙产品3件;25日,投产甲产品4件,丁产品5件。该企业3月份应开设的产品成本明细账的个数是
A.
3
B.
5
C.
4
D.
6
【单选题】Now the internet has been accepted as the _____ technology to many other methods in colleges and universities.
A.
preferred
B.
referred
C.
inferred.
D.
occurred
【简答题】There have been increased demands for higher education to provide students with better courses and more opportunities. To deal with this 1) ____________ issue, colleges and universities are turning to...
【单选题】某企业采用分批法计算产品成本。3月份投产的产品情况是:1日,投产甲产品4件,乙产品3件;16日,投产甲产品5件,丙产品3件;25日,投产甲产品4件,丁产品5件。该企业3月份应开设的产品成本明细账的张数是()。
A.
3张
B.
4张
C.
5张
D.
6张
【单选题】某企业采用分批法计算产品成本。3月份投产的产品情况是:1日,投产甲产品4件,乙产品3件;16日,投产甲产品5件,丙产品3件;25日,投产甲产品4件,丁产品5件。该企业3月份应开设的产品成本明细账的张数是( )
A.
3张
B.
5张
C.
4张
D.
6张
【简答题】Now the Internet has been accepted as the (3)_____ technology to many other methods in colleges and universities. Many teachers now routinely (4)_____ their teaching materials online. A growing number...
【单选题】某企业采用分批法计算产品成本。3月份投产的产品情况是: 1日,投产甲产品4件,乙产品3件; 16日,投产甲产品5件,丙产品3件; 25日,投产甲产品4件,丁产品5件。该企业3月份应开设的产品成本明细账的张数是()
A.
3
B.
4
C.
5
D.
6
【判断题】在两个不同温度的恒温热源间工作的一切可逆热机具有相同的热效率。
A.
正确
B.
错误
相关题目: