股价移动平均线可用于对股价趋势进行短期预测。
参考答案：错
我国轻工系统规定表面活性剂7天生物降解率必须大于（）
A.50%
B.60%
C.70%
D.80%
E.90%
In relation to the law of contract, distinguish between and explain the effect of:
(a) a term and a mere representation; (3 marks)
