常物性流体在常热流边界条件下,管内流动进行对流换热,当进入热充分发展段时,表面传热系数hx将( )。
A.先增大后减小 B.减小 C.增大 D.不变
参考答案:D
肝阳上亢的治法是()
A.泻南补北
B.扶土抑木
C.滋水涵木
D.培土生金
E.佐金平木
根据以下提示,结合事例,用英语写一篇短文。
Encouragement from a friend plays a very important role in motivating you to solve the problems you are facing.It helps you fight the difficulties and get out of an unfavorable situation you are stuck in.
注意:
(1)无须写标题,文章开头已经给出,不得照抄英语提示语;
(2)除诗歌外,文体不限;
(3)文中不得透露个人姓名和学校名称;
(4)词数为120左右。
Encouragements can serve as a ray of hope during difficult times.