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【简答题】
试用溶度积规则解释为什么 能溶于稀盐酸中。
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【简答题】A.Because the farmer planted the tree near the road. B.Because the farmer planted the tree on one of his field. C.Because the farmer planted the tree near his house. D.Because the farmer planted the t...
【简答题】Have you e  1 planted a few trees on Tree Planting Day? Each year, many of people, both old a  2 __ young, plant a lot of trees. But this may not be the best w 3  __ to make your home a greener place....
【单选题】Many trees and flowers ________ in our city every year. [     ]
A.
planted
B.
are planted
C.
were planted
D.
plants
【单选题】Look, the leaves of the newly planted tree have withered. You _______ it this morning.
A.
should water
B.
should have watered
C.
you needed to water
D.
had to water
【单选题】信息保持时间长久,记忆容量大的记忆是()
A.
感觉记忆
B.
短时记忆
C.
长时记忆
D.
瞬时记忆
【单选题】Many trees _____ on the hill next year. [     ]
A.
is planted
B.
plants
C.
have planted
D.
will be planted
【单选题】函数 在点 处的导数为( )
A.
1
B.
0
C.
-1
D.
不存在
【单选题】设函数 在点 处的导数为 A,则
A.
A
B.
2A
C.
3A
D.
4A
【简答题】A.Because the farmer planted the tree near the road. B.Because the farmer planted the tree on one of his field. C.Because the farmer planted the tree near his house. D.Because the farmer planted the t...
【单选题】We have planted thousands of trees in recent years. This year _____ we’ve planted ten thousand trees.
A.
even
B.
just
C.
alone
D.
only
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