皮皮学，免费搜题
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【单选题】
哪种因素最易引起植物的烂根?A.
干旱
B.
土壤长期积水
C.
土壤中铁元素 较少
D.
土壤pH较高
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】We will be shown around the city: schools, museums, and some other places, ______ other visitor
A.
174. We will be shown around the city: schools, museums, and some other places, ______ other visitors seldom go. A．what
B.
which
C.
where
D.
When
【单选题】The demand for places at some schools ________ the supply.
A.
covers
B.
exceeds
C.
over
D.
under
【简答题】阅读理解。 Students should dress well at school. This is because schools are places where students study. Students shouldn't be dressed fashionably or strangely. That is thought of as impolite behavior at ...
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