皮皮学，免费搜题
登录
搜题
【简答题】
SECTION B ENGLISH TO CHINESE Directions: Translate the following text into Chinese. With our Metamucil orange juleps in lured, we toast being best friends. It’s something to celebrate. No couple arrives at that point automatically. According to our research, what people want most from their mates is friendship. It's the greatest indicator of a successful second-haft marriage. So to spice up your marriage, become best friends. When true friends talk they don’t try to change one another. They relax and enjoy the conversation. How wonderful to feel safe with each other, to bare your soul without fear of rejection or unsolicited advice! That's true friend.
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【单选题】有一并联管路,如图所示,两段管路的流量,流速、管径、管长及流动阻力损失分别为qv1,u1,d1,L1,Σhf1及 qv2,u2,d2,L2,Σhf2。若d1=2d2 ,L1=2L2。当两段管路中流体均作层流流动时,qv1/qv2为:
A.
mg src="http://p.ananas.chaoxing.com/star3/origin/2852d5995903cd1671c4845771741ebb.jpg">
B.
1
C.
2
D.
4
E.
8
【单选题】有一并联管路,如图所示,两段管路的流量,流速、管径、管长及流动阻力损失分别为v 1 ,u 1 ,d 1 ,L 1 ,Σh f1 及 v 2 ,u 2 ,d 2 ,L 2 ,Σh f2 。若d 1 =2d 2 ,L 1 =2L 2 ,若两段管路中流体均作滞流流时,u 1 /u 2 =( )
A.
2
B.
4
C.
1/2
D.
1/4
E.
1 .
【单选题】（单选）有一并联管路，如图所示，两段管路的流量、流速、管径、管长及流动阻力损失分别为qv1，u1，d1，L1，wf1及 qv2，u2，d2，L2，wf2。若d1＝2d2 ，L1＝2L2。当两段管路中流体均作层流流动时， u1/u2＝（ ）*【图片】
A.
2
B.
4
C.
1/2
D.
1/4
【单选题】有一并联管路,如图所示,两段管路的流量、流速、管径、管长及流动阻力损失分别为qv1,u1,d1,L1,Σhf1及 qv2,u2,d2,L2,Σhf2。若d1=2d2 ,L1=2L2。当两段管路中流体均作层流流动时, u1/u2为:
A.
mg src="http://p.ananas.chaoxing.com/star3/origin/2852d5995903cd1671c4845771741ebb.jpg">
B.
2
C.
4
D.
1/2
E.
1/4
【单选题】He helped me and I hope I can do something for him_______.
A.
in turn
B.
for return
C.
by turn
D.
in return
【单选题】（单选）有一并联管路，如图所示，两段管路的流量，流速、管径、管长及流动阻力损失分别为qv1，u1，d1，L1，wf1及 qv2，u2，d2，L2，wf2。若d1＝2d2 ，L1＝2L2。当两段管路中流体均作层流流动时，qv1/qv2＝（ ）*【图片】
A.
1
B.
2
C.
4
D.
8
【简答题】I hope we can have some snow this winter.
【简答题】已建成的世界上最大的潮汐发电站是法国朗斯河口发电站,总装机容量大约是 千瓦。
相关题目：
参考解析：
知识点：
题目纠错 0
发布
