狭义的学习特指人类的学习，尤其是学生在学校里的学习。
参考答案：对
She _____ the national table tennis team in 1988. [ ]
A. joins
B. joined
C. took part in
D. took part
根据实验规范，图示的实验操作中正确的是（ ）
A．
B．
C．
D．
