【单选题】Emails are often shorter than letters, and often use abbreviations. How could you write ''I received the information you sent me'' in an email?
A.
I got the information you sent me.
B.
Thanks for the information.
【判断题】运行中离心泵要求原动机传递给泵主轴的功率叫离心泵的轴功率。
【简答题】平行力系合力作用点的位置仅与各平行力的大小和作用点的()有关。
【简答题】SectionD大家打开爱听外语sectionD部分,做passage1到passage5 Passage1 Nowadays, more and more students are using emails to communicate. Several reasons why email has become a great tool are that it is fast, 1——, and...
【简答题】模具的()就是冲压力的作用点,求()的方法就是求空间平行力系的合力作用点。
【简答题】弯杆受载荷如图所示.求:(1)这些载荷合力的大小和方向;(2)合力作用点在AB线上的位置;(3)合力作用点在BC线上的位置.