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【多选题】
流位置1处的流线比位置2处的流线密集，则两处的速度v1和v1、横截面积A1和A2的关系为：A.
v1
B.
v1>v2
C.
A1< A2
D.
A1> A2
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【单选题】John went to the ______ to buy a pair of shoes yesterday.
A.
shoes store
B.
shoes’ store
C.
shoe’s store
D.
shoe store
【单选题】Invest a good pair of shoes and make sure the shoes are______.
A.
expensive
B.
comfortable
C.
tough
D.
light
【简答题】How much are the shoes?（改为同义句） ________ ________ ________of the shoes?
【单选题】What is Selene Parekhs answer to the best shoes to wear?
A.
Shoes that are customized to individuals.
B.
Shoes that fit to a person's wear pattern.
C.
Shoes that are both cheap and comfortable.
D.
Shoes that cause no pressure to the feet.
【单选题】—What are they used for, Michael? —You can change the style of your shoes and make the shoes from casual to dressy. [ ]
A.
to go
B.
going
C.
go
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