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【单选题】
混合组合式储运包装商品是由多个不同零售商品组成的标准的组合包装商品。以下商品组合符合上述要求的是?
A.
一台电冰箱
B.
12包350g/包华丰方便面
C.
1500g猪肉
D.
1瓶500g矿泉水、1瓶200g饮料
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皮皮学刷刷变学霸
举一反三
【多选题】人字板的作用包括()。
A.
取向
B.
稳定膜管
C.
逐渐将圆筒形的薄膜折叠成平面状
D.
进一步冷却薄膜
【单选题】Sharks are fish. There are about 350 species of sharks. The smallest sharks are only 12. 5 cm long. The largest, the whale shark, is the world's largest fish. It grows to about 1Sm long. Sharks are di...
A.
humans' friends
B.
man's enemies
C.
the world's largest fish
D.
not the same as other fish
【判断题】由于二氧化硫的漂白作用,能使高锰酸钾溶液褪色。
A.
正确
B.
错误
【单选题】What is the use of a seisograph?
A.
It is used to record the strength of an earthquake or seaquake.
B.
It is used to record the direction of an earthquake or seaquake.
C.
It is used to record the length of time of an earthquake or seaquake.
D.
It is used to predict when a tidal wave will hit land.
【单选题】What contributes most to the overfishing of sharks is ______,
A.
the sharks accidentally captured by tuna fishers
B.
the rough few decades that sharks have suffered
C.
the ever-increasing demand for their fins and meat
D.
the millions of sharks killed deliberately each year
【单选题】What is the use of a seismograph?
A.
It is used to record the strength of an earthquake or seaquake.
B.
It is used to record the direction of an earthquake or seaquake.
C.
It is used to reocrd the length of time of an earthquake or seaquake.
D.
It is used to predict when a tidal wave will hit land.
【单选题】Sharks use strength to get what they want. They try to win by _______other people.
A.
making up with
B.
compromising
C.
overpowering
D.
competing with
【简答题】Sharks are among the oldest animals on Earth. There are hundreds of kinds of sharks. Most are about two meters long. The dogfish shark, however, is less than twenty centimeters in length. A shark has ...
【简答题】21 对下列各题分别证明G是否为F1,F2,......Fn的逻辑结论。其中(1)(2)(3)
【简答题】对下列各题分别证明 G 为 的逻辑结论。
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