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【多选题】
What are the formal meanings of different colored roses in some cultures?A.
White roses are for true love and purity of the mind.
B.
Red roses are for love and passion.
C.
Yellow roses are for friendship.
D.
Black roses mean farewell.
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【判断题】Scuba diving seems to be the only activity that appeals to both Bob and Gloria.
A.
正确
B.
错误
【简答题】短文改错。 Not too long ago, people can't go scuba diving on Hainan Island, or anywhere else. This were because there was no machine allowing person to breathe under water for long time. In 1943 Jacques C...
【简答题】Why couldn’t Ivan take his kids scuba diving?
【简答题】短文改错。 Not too long ago, people can't go scuba diving on Hainan Island, or anywhere else. This were because there was no machine allowing a person breathe under water for long time. In 1943 Jacques Co...
【简答题】发酵过程受到噬菌体的污染，使发酵失败，得不到产物的过程叫“（ ）”。
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