【单选题】which of the following can best describe the attitude of the author towards the younger teachers?
【单选题】下列描述正确的是()
A.
绳索的约束反力的作用线是沿绳索,方向是指向被约束体
B.
对光滑接触面约束,约束反力沿接触处的公法线,背离被约束体
C.
对固定铰支座约束,约束反力可以用互相垂直的两个分力表示
D.
对于构成中间铰链的两个构件,构件1与构件2可以组成一对平衡力
【单选题】The experienced teachers try their best _____ the younger ones _____experience.
【判断题】北京作为世界闻名的文化古城,最具特色的是四合院、胡同和市肆庙会。( )
【多选题】Which are the ways that help the younger teachers keeping improving in Shanghai?
A.
Make sure the younger teachers get a chance to watch teachers' work
B.
They have weakly study group where teachers get together talk about what's working.
C.
They require each teacher to observer and get feedbacks to their colleagues.
D.
They ask students to give a mark to their teachers.
【判断题】Moreover, the younger teachers themselves evidently have little knowledge of these vital structures of language because they also went without exposure to them . 中 they 和 them 都是指the younger teachers。
【简答题】基本数据类型boolean的封装类是( )。