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【判断题】

黄瓜嫁接育苗时,为了有效防治枯萎病,宜选用的砧木是黑籽南瓜。

A.
正确
B.
错误
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参考答案:
举一反三

【单选题】商品化育苗采用的基质材料是( )。

A.
草炭、珍珠岩、蛭石
B.
草炭、沙土、蛭石
C.
草炭、壤土、蛭石
D.
草木灰、珍珠岩、蛭石

【多选题】黄瓜镶金边的主要原因有()。

A.
缺钙
B.
土壤干旱、蹲苗过重
C.
氮、镁、钾肥施用过多
D.
喷药浓度过高

【单选题】黄瓜的茎属于()。

A.
缠绕茎
B.
攀缘茎
C.
匍匐茎
D.
直立茎

【单选题】An elm in our backyard(7)the blight (枯萎病) this summer and dropped stone dead, leafless, almost overnight. One weekend(8)was a normal-looking elm, maybe a little bare in spots but(9)alarming, and the n...

A.
There are so many new books about dying that there are now special shelves set aside for them in bookshops, along with the health-diet and home-repair paperbacks. Some of them are so(1) with detailed information and step-by-step instructions for performing the function, that you’d think this was a new sort of(2)which all of us are now required to learn. The strongest impression the casual reader gets is that proper dying has become an extraordinary,(3)an exotic experience, something only the specially trained can do.
B.
(4), you could be led to believe that we are the only(5)capable of being aware of death, and that when the rest of nature is experiencing the life cycle and dying, one generation after(6), it is a different kind of process, done automatically and trivially, or more "natural", as we say.

【单选题】黄瓜为什么叫“黄瓜”不叫“绿瓜”()。

A.
原叫胡瓜后为避讳改
B.
黄瓜老了会变黄色
C.
花为黄色因此得名
相关题目:
【单选题】商品化育苗采用的基质材料是( )。
A.
草炭、珍珠岩、蛭石
B.
草炭、沙土、蛭石
C.
草炭、壤土、蛭石
D.
草木灰、珍珠岩、蛭石
【多选题】黄瓜镶金边的主要原因有()。
A.
缺钙
B.
土壤干旱、蹲苗过重
C.
氮、镁、钾肥施用过多
D.
喷药浓度过高
【单选题】黄瓜的茎属于()。
A.
缠绕茎
B.
攀缘茎
C.
匍匐茎
D.
直立茎
【单选题】An elm in our backyard(7)the blight (枯萎病) this summer and dropped stone dead, leafless, almost overnight. One weekend(8)was a normal-looking elm, maybe a little bare in spots but(9)alarming, and the n...
A.
There are so many new books about dying that there are now special shelves set aside for them in bookshops, along with the health-diet and home-repair paperbacks. Some of them are so(1) with detailed information and step-by-step instructions for performing the function, that you’d think this was a new sort of(2)which all of us are now required to learn. The strongest impression the casual reader gets is that proper dying has become an extraordinary,(3)an exotic experience, something only the specially trained can do.
B.
(4), you could be led to believe that we are the only(5)capable of being aware of death, and that when the rest of nature is experiencing the life cycle and dying, one generation after(6), it is a different kind of process, done automatically and trivially, or more "natural", as we say.
【单选题】黄瓜为什么叫“黄瓜”不叫“绿瓜”()。
A.
原叫胡瓜后为避讳改
B.
黄瓜老了会变黄色
C.
花为黄色因此得名
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