上紧气缸盖螺栓时，应采用从（）的交替上紧方法。
A.从两边向中间
B.从左边到右边
C.从右边向左边
D.从中间向两边
参考答案：D
They didn't find _____ in today's morning paper. [ ]
A. something new
B. anything new
C. new lesson
D. new anything
常见的形成性评价工具有哪些
