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【简答题】
简述铁路运输的优缺点。
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举一反三
【单选题】Allowance for fresh water refers to().
A.
the provision to be provided when the vessel sails in fresh water area
B.
the fresh water to be carried by a vessel
C.
the allowance of fresh water for each crew member when in distress at sea
D.
the amount of free board decreased when sailing in fresh water area
【单选题】I don’t like  to go to the theatre because the air there is______. [     ]
A.
fresh
B.
no fresh
C.
not fresh
D.
freshing
【单选题】Which statement concerning the collection of fresh water is FALSE?
A.
Fresh water may be obtained from fish
B.
lifeboat covers or canopies should be washed with rain before drinking water is collected
C.
Fresh water may be collected from condensation inside the life-raft
D.
Freshwater cannot be produced from standing seawater
【单选题】The air here is ______ I can enjoy in my mountain village.
A.
not so fresh as that
B.
so fresh as
C.
as fresh as what
D.
so fresh as what
【单选题】flesh--fresh
A.
flesh
B.
fresh
【多选题】厚角组织的细胞壁主要为:
A.
初生壁增厚
B.
含有大量纤维素
C.
次生壁增厚
D.
含有大量木质素
【多选题】厚壁组织的细胞壁主要为:
A.
初生壁增厚
B.
初生壁外侧加厚
C.
次生壁增厚
D.
均匀加厚
【单选题】商品名称规格型号( )
A.
鲜香菇FRESH MUSHROOM
B.
鲜香菇
C.
FRESH MUSHROOM
D.
FRESH MUSHROOM HS CODE,DE07095190
【多选题】厚壁组织的细胞壁主要为:
A.
初生壁增厚
B.
含有大量纤维素
C.
次生壁增厚
D.
含有大量木质素
【简答题】机械组织在植物体内起_______作用,其细胞的主要特点是_______,可分为_______和_______。厚角组织的细胞最明显的特征是_______,而且这种增厚是_______性质的;厚壁组织则具有均匀增厚的_______,且常木质化,根据其细胞的形态可分为_______和_______。
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