The goal of contrastive analysis is to predict what areas will be easy to learn and what areas will be difficult to learn.

What are the three types of background? A: interpretative background B: contrastive background C: explanative background D: analytical background

What should we do when faced with a contrastive situation? A: Do nothing B: Act flexibly C: Act blindly

Which theories are proposed from the cognitive perspective in SLA research field？ A: Input Processing B: Contrastive Analysis Hypothesis C: Interaction Hypothesis D: Noticing Hypothesis

The purpose of the author in mentioning the three researches is to ______. A: make a contrastive analysis of them B: illustrate the achievements in cancer therapy C: present the similarities and differences between them D: show how altered genes can cause cancer