陈某(15周岁)因喜好计算机，于某日深夜潜入一公司内盗窃价值3万余元的计算机元器件

已知函数f（x）的定义域为D：（-∞，0）∪（0，+∞），且满足对于任意x，y∈D，有f（xy）=f（x）+f（y），

（Ⅰ）求f（1），f（-1）的值；

（Ⅱ）判断f（x）的奇偶性并说明理由；

（Ⅲ）如果f（4）=1，f（3x+1）+f（2x-6）≤3，且f（x）在（0，+∞）上是增函数，求x的取值范围。

在送团前，地陪导游员应做好准备工作，包括：核实、确认交通票据；（）。

A．核实团名、代号、人数、去向、航班、起飞时间、出发地点等

B．商定出行李时间

C．商定叫早、早餐、集合和出发时间

D．协助饭店结清与旅游者有关的账目

E．及时归还证件

Rosa and Alexei are partners in a successful unlimited partnership. Rosa is highly ambitious and wishes to pursue rapid growth, but Alexei does not want to take unnecessary risks and is satisfied with the business as it is currently structured.Rosa has been taking decisions that exceed her authority under the partnership agreement. She recently ordered expensive new IT equipment. Alexei is angry as he considers the equipment to be far too sophisticated for the needs of the business in the foreseeable future. Rosa argues that the business needs to invest heavily to build on its success.The partners meet to resolve their differences. Alexei demands that the IT equipment, which is now installed and ready for use with new software, be returned to the supplier. The supplier of the equipment has submitted its invoice and this is due for payment immediately. Rosa refuses to agree to return the equipment.Required:

(a) Explain whether Alexei can demand that the IT equipment be returned to the supplier. (3 marks)

Писатель ( должный, должен ) много писать, но не ( должный, должен ) спешить.

对患者进行健康教育属( )

A．医师义务
B．医师权利
C．患者权利
D．患者义务
E．医患权利