教学要针对学生的最近发展区，走在学生的前面。
参考答案：对
风湿热的特征性表现不包括______
A．发热
B．心肌炎
C．多发性关节炎
D．皮下结节
E．环形红斑
—How was your day off yesterday?
—Perfect！It was my grandma's ________ birthday. We had a big cake.
A .eighty B. eightieth C. the eightieth
