混凝土单向板是一种典型的()构件。
A、受拉
B、受弯
C、抗压
D、抗折
参考答案:B
试述教学过程中,掌握知识和发展智力互相转化的基本条件。
The school to which David ______ his paintings is beautiful.
A.donated
B.developed
C.achieved
D.selected