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【简答题】
()将 220V 交流电转换为动力电池的直流电,实现电池电量的补给。
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【单选题】When a person lives too many hours a day in the digital universe, that is when he or she _____ something.
A.
has missed
B.
will miss
C.
is missing
D.
misses
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【单选题】When man began to search the skies, he saw a lot of things. In the universe(宇宙), the earth seemed to be just a small bit of dust. It is only a small planet, and travels around the sun. The sun togethe...
A.
the Milky Way is the only galaxy
B.
other galaxies are near ours
C.
the sun is a large star in the Milky Way
D.
the earth is a small part of the universe
查看完整题目与答案
【单选题】Scientists have many theories about how the universe ____ into being. [ ]
A.
came
B.
was coming
C.
had come
D.
would come
查看完整题目与答案
【单选题】The time will come ______ man can fly to ______ he likes in the universe.
A.
how…where
B.
when…wherever
C.
where…where
D.
what…which
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【判断题】幼茎的木栓形成层起源于表皮或皮层,所以茎较早的次生构造中常有皮层存在。()
A.
正确
B.
错误
查看完整题目与答案
【多选题】茎的木栓形成层可以起源于( )
A.
表皮
B.
皮层
C.
中柱鞘
D.
初生韧皮部
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【单选题】茎中的木栓形成层起源于()。
A.
表皮
B.
皮层
C.
韧皮薄壁细胞
D.
前三者均对
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【判断题】根和茎中的木栓形成层最初都起源于中柱鞘。( )
A.
正确
B.
错误
查看完整题目与答案
【单选题】Our whole physical universe, when______to the simplest terms, is made up of two things, energy and matter.
A.
being reduced
B.
reducing
C.
reduced
D.
to be reduced
查看完整题目与答案
【判断题】根和茎的木栓形成层最早起源于中柱鞘
A.
正确
B.
错误
查看完整题目与答案
相关题目:
【单选题】When a person lives too many hours a day in the digital universe, that is when he or she _____ something.
A.
has missed
B.
will miss
C.
is missing
D.
misses
查看完整题目与答案
【单选题】When man began to search the skies, he saw a lot of things. In the universe(宇宙), the earth seemed to be just a small bit of dust. It is only a small planet, and travels around the sun. The sun togethe...
A.
the Milky Way is the only galaxy
B.
other galaxies are near ours
C.
the sun is a large star in the Milky Way
D.
the earth is a small part of the universe
查看完整题目与答案
【单选题】Scientists have many theories about how the universe ____ into being. [ ]
A.
came
B.
was coming
C.
had come
D.
would come
查看完整题目与答案
【单选题】The time will come ______ man can fly to ______ he likes in the universe.
A.
how…where
B.
when…wherever
C.
where…where
D.
what…which
查看完整题目与答案
【判断题】幼茎的木栓形成层起源于表皮或皮层,所以茎较早的次生构造中常有皮层存在。()
A.
正确
B.
错误
查看完整题目与答案
【多选题】茎的木栓形成层可以起源于( )
A.
表皮
B.
皮层
C.
中柱鞘
D.
初生韧皮部
查看完整题目与答案
【单选题】茎中的木栓形成层起源于()。
A.
表皮
B.
皮层
C.
韧皮薄壁细胞
D.
前三者均对
查看完整题目与答案
【判断题】根和茎中的木栓形成层最初都起源于中柱鞘。( )
A.
正确
B.
错误
查看完整题目与答案
【单选题】Our whole physical universe, when______to the simplest terms, is made up of two things, energy and matter.
A.
being reduced
B.
reducing
C.
reduced
D.
to be reduced
查看完整题目与答案
【判断题】根和茎的木栓形成层最早起源于中柱鞘
A.
正确
B.
错误
查看完整题目与答案