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【简答题】
图示一跨河倒虹吸管,正方形断面面积为 A=0.64 m2,长 l =50 m,两个 30。折角、进口和出口的局部水头损失系数分别为ζ1=0.2,ζ2=0.5,ζ3=1.0,沿程水力摩擦系数λ=0.024,上下游水位差 H=3m。求通过的流量 Q ? ( 10分)
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【简答题】常用的Java用户界面容器有___1____、___2____ 和___3____等。
【单选题】甲在上班途中遗失手机一部,被乙拾得。甲发布悬赏广告称,愿向归还手机者支付现金1000元作为酬谢。根据物权法律制度的规定,下列表述中,正确的是( )。
A.
返还手机是乙的法定义务，故甲虽承诺向归还手机的拾得人支付1000元酬金，乙仍无权请求甲支付该酬金，仅有权要求甲支付因返还手机而发生的必要费用。
B.
若不知情的丙直接从乙手中以3000元的市场价格买来手机，则甲除非向丙支付3000元，否则无权请求丙返还手机。
C.
若乙将手机送交公安机关，而甲未于公安机关发出招领公告之日起6个月内认领，则乙取得该手机的所有权。
D.
若乙欲将手机据为己有，则甲有权请求乙归还，乙既无权请求甲支付1000元酬金，亦无权要求甲支付必要的返还费用。
【多选题】Which 3 things does Mike say many people store on their laptops?
A.
documents
B.
emails
C.
music
D.
photos
E.
personal details
F.
videos
【单选题】People are crowding around the entrance to a toy store, which won't open for another hour.
A.
The store is the only toy store in the entire state.
B.
There is always a crowd like this an hour before opening.
C.
The store has paid a crowd to show up.
D.
The store is having a well-publicized sale.
【简答题】完形填空。 Is there a job for you after college? What does the world of work hold in store for you? That 1 in large measure on who you are. If you've enjoyed your studies in English and history, 2 , you'll...
【单选题】What does “This is one store that doesn’t take kindly to returns” mean?
A.
This store doesn’t refund.
B.
This store doesn’t take returned goods.
C.
This store doesn’t want its customers to come back for remarriage.
【简答题】Whatdoes “Th one store that doesn’ttake kindly to returns”mean?A. This
store doesn’t
refund. B. This
store doesn’t
take returned goods. C. This
store doesn’t
want its customers to come back for re...
【单选题】― Which clothes store is ________, Bill's or Jason's? ― Bill's. But Green's is the ________ in the town. [ ]
A.
cheaper; cheapest
B.
cheapest; cheapest
C.
cheapest; cheaper
D.
cheaper; cheaper
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