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【多选题】
关于横向的描述,正确的是:A.
横向驰豫是一个从零状态恢复到最大值的过程
B.
横向驰豫是一个从最大值恢复到零状态的过程
C.
T2值是横向驰豫减少至最大时的37%的时间值
D.
横向驰豫时间是一个从零恢复到63%所需的时间
E.
人体组织成分不同,T2值也不同
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【单选题】We can come to the ______ that the more we practice，the more skillful we will be.
A.
tradition
B.
generation
C.
conclusion
D.
fact
【单选题】We know from the last paragraph that______.
A.
people in the north are more obsessed with tidiness
B.
where there are less human beings, there are more birds
C.
cultural difference is not clear from south to north in England
D.
people in the south enjoy decorating their gardens with green plants
【简答题】If the B/L states that the goods were shipped“ in apparent good order and condition” then any damage must have occurred（ ）．
【简答题】阅读理解。 However important school life may be, we can't ignore the fact that children spend more time at home than in the classroom. Therefore the great influence of parents can't be ignored or discounte...
【单选题】When we encounter more difficulties, we should be more spirited, and we should be more courageous______.
A.
the more danger we are in
B.
the more in danger we are
C.
we are in more danger
D.
we are in danger more
【简答题】If we contribute more to the world, we will be more rewarded with ______.
【简答题】阅读理解。 However important school life may be, we can't ignore the fact that children spend more time at home than in the classroom. Therefore the great influence of parents can't be ignored or discounte...
【简答题】Why is ti that the __________ (connect) we get, the more disconnected I feel.
【简答题】已知A=-x 3 +2x 2 -1，B=3x 3 +4x 2 -2，求2A-B。
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