下列哪些属于法律规制的特征()
A.强制性
B.效益性
C.适应性
D.纲领性
参考答案:A, B, C, D
The Communicative Approach emphasizes that the goal of language learning is______.
A.communicative competence
B.analytical discourse
C.correcting errors
D.direct response
在现场对电流互感器进行比角差测试时应注意哪些事项?