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【多选题】
下列关于双氧水( H 2 O 2 )性质描述正确的A.
有氧化性
B.
有还原性
C.
四个原子不在同一个平面
D.
存在分子间氢键
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A.
ran
B.
run
C.
running
D.
to run
【简答题】As a boy, Finn is said to have entered into the ______ of an old man, Finn Eger, who had been waiting seven years for the Salmon of Lynn Feic. ______ after arriving, the youth succeeds in catching the...
【单选题】The old man entered the room with a dog _________behind him.
A.
ran
B.
run
C.
running
D.
to run
【单选题】The old man is proud of his three sons __________ college in the same year.
A.
entering
B.
entered
C.
to enter
D.
for entering
【简答题】As a boy, Finn is said to have entered into the ____1____of an old man, Finn Eger, who had been waiting seven years for the Salmon of Lynn Feic. ____2____after arriving, the youth succeeds in catching...
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【单选题】The old man entered the room with a dog _________behind him.
A.
ran
B.
run
C.
running
D.
to run