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【单选题】
下列物质中,既能与溴水反应又能与三氯化铁发生显色反应的是( )A.
甲苯
B.
苄醇
C.
苯酚
D.
甘油
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皮皮学刷刷变学霸
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【单选题】如右图所示,小车M在恒力F作用下,沿水平地面做直线运动,由此可判断( ) 1若地面光滑,则小车可能受三个力作用 2若地面粗糙,则小车可能受三个力作用 3若小车做匀速运动,则小车一定受四个力作用 4若小车做加速运动,则小车可能受三个力作用
A.
①②③
B.
②③
C.
①③④
D.
②③④
【简答题】First greet and 1 . Hand out the business card. Keep its 2 up so that it can be read easily. Look at the card and make a 3 before putting back into the case or pocket. Make sure to keep the card 4 . O...
【单选题】With a lot of problems _______, the principal decided to hold a meeting to have a discussion about them
A.
to solve
B.
being solved
C.
solving
D.
solved
【单选题】An example of a product which might well have been advertised during the early stages of the Industrial Revolution is
A.
a cooking utensil.
B.
new child's toy.
C.
tinned fruit.
D.
household soap.
【单选题】They only have a limited amount of time to get their points across.
A.
large
B.
total
C.
small
D.
similar
【单选题】He was busy writing the essay all the morning, only ______ occasionally to have a cup of tea.
A.
breaking off
B.
breaking out
C.
breaking
D.
breaking away
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