()是指教师对教育教学实践的再认识、再思考,并以此来总结经验教训,进一步提高教育教学水平。
A.教学实践
B.教学反思
C.教学评价
D.教学思路
参考答案:B
The amount of money they had saved reached 30,000 dollars.
A.as many as
B.as far as
C.as high as
D.as much as
凝汽器真空为65kPa,当地大气压为101kPa,则凝汽器内绝对压力为()kPa。
A.65;
B.36;
C.166;
D.101。