学生在教师指导下经过自己思考探索所要掌握知识的方法叫（）。
A.研究法
B.讨论法
C.实验法
D.演示法
参考答案：A
读短文，判断下句子正(T)误(F)。
Amy and Mary are good friends. Amy is thirteen. She comes from America. She can speak English, French
and Chinese. Mary is twelve. She is American, too. She can speak English, Spanish and Japanese. They study in
the same school, but in different classes.
( ) 1. Amy and Mary come from the same country.
( ) 2. Amy is younger than Mary.
( ) 3. Mary can speak English, French and Japanese.
.湿热灭菌时间要比干热灭菌时间短。（）
