【单选题】Davidson et al highlight that mutuality is a fundamental component in the concept of ecosystems. Which of the following is Davidson et al's definition of mutuality?
A.
The coordination, arrangement and management of complex environments
B.
Linkages across the ecosystem environment which connect data, information and knowledge
C.
An enhanced level of co-ordination with formally or informally shared ideals, standards or goals
D.
Speed and direction of exchanges of value among participants
【单选题】In the Interest Parity Condition, Rt - Rt = ( - Et)/Et + xt, where Rt - Rt is the interest rate differential and ( - Et)/Et is the expected change in the exchange rate, what does xt stand for if ...
【简答题】P46 Task 5 Listen to the conversation and discuss the following questions. 1. How is the computer eake-up service used? 2. How is the et time changed?