【单选题】以下哪一项不属于直接热能回收系统的优点?
【单选题】What is the difference between Peter and Nelson in their attitude to pet-keeping?
A.
Peter disapproves of treating animals like human beings, but Nelson doesn't think so.
B.
Nelson believes that pet-keeping is a natural need of human beings, but Peter doesn't think so.
C.
Nelson makes a distinction between human friends and animals, but Peter doesn't.
【多选题】关于利率期限结构的Nelson & Siegel估计方法说法正确的是
B.
通过调整水平参数、斜率参数与曲率参数Nelson & Siegel估计方法可以拟合出不同类型的利率期限结构形状;
C.
Nelson & Siegel方法克服了样条函数法对数据过于敏感的问题;
D.
Nelson & Siegel估计方法的参数个数少于样条函数法
【单选题】What problem did Mr Nelson meet while checking in at the hotel?
A.
The hotel reservationist didn't have a reservation for Mr. Nelson.
B.
The hotel reservationist made a mistake on Mr. Charles Nelson’s arrival date.
C.
The hotel reservationist made a mistke on Mr. Nelson's type of room.
D.
The hotel reservationist made a mistke on spelling Mr. Nelson's name.
【判断题】未被污染的塑料餐具(便当盒、碗、匙)属于可回收垃圾。
【判断题】未被污染的塑料餐具(便当盒、碗、匙)属于可回收物。()
【单选题】What is the difference between Peter and Nelson in their attitudes to pet-keeping?
A.
Peter disapproves of treating animals like human beings, but Nelson doesn't think so.
B.
Nelson believes that pet-keeping is a natural need of human beings, but Peter doesn't think so.
C.
Nelson makes a distinction between human friends and animals, but Peter doesn't.