【判断题】水性漆使用专用过滤网的原因是水性漆的颗粒比较小,不能使用普通滤网。
【单选题】国民党基层组织空虚的表现之一是()。造成的原因主要有二:一是人才上涌,一是人才外流。基层党部留不住人才。人才上涌与近代以来知识分子都市化的时代潮流有关。人才外流,则是党权低落和党政失衡的结果。
【简答题】如何改善自动轧管机轧管后荒管横向壁厚不均的问题?
【简答题】用于成批生产的车床,主轴转速 n 电 = 45 ~ 500r/min ,为简化机构采用双速电动机, n 电 = 720/1440r/min ,试画出该机床的转速图和传动系图。
【单选题】矩形截面梁当横截面的高度增加一倍,宽度较小一半时,从正应力强度条件考虑,该梁的承载能力的变化将有四种答案:
【单选题】What purpose does NOT post-listening activities serve?
A.
Helping students relate the text with their personal experience.
B.
students the opportunities of extending other language skills.
C.
Practicing students’ ability of matching the pre-listening predictions with contents of the text.
D.
Giving the answer directly to students and not to explain.
【单选题】At least, he seemed to find so much in her to _____. A. astonish B. circulate C. accelerate D. applaud
【判断题】调频有两种方法,分别称为直接调频和间接调频。