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【简答题】
集成芯片74LS148是 ,74LS138是 ,74LS48是 。
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皮皮学刷刷变学霸
举一反三
【单选题】We have ____ books in our school library.
A.
Hundred of
B.
hundreds of
C.
a hundreds of
D.
ten hundreds of
【单选题】Goods may be dangerous not merely by reason of the fact that they may endanger the safety of the vessel， but also because they are liable to cause the vessel to ________ ．
A.
detain
B.
be detained
C.
be detaining
D.
detains
【判断题】Post-reading tasks should provide the students with opportunities to relate what they have read to what they already know or what they feel.
A.
正确
B.
错误
【单选题】There are over ______ students in their school. [ ]
A.
hundreds
B.
nine hundreds
C.
hundreds of
D.
nine hundred
【简答题】I have been to Beijing ______ times． A．five hundreds B．hundred C．hundreds D．hundreds of
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