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【单选题】
下列防腐剂按照毒性大小排列,顺序正确的是A.
山梨酸>苯甲酸>对羟基苯甲酸酯类
B.
苯甲酸>对羟基苯甲酸酯类>山梨酸
C.
对羟基苯甲酸酯类>山梨酸>苯甲酸
D.
山梨酸>对羟基苯甲酸酯类>苯甲酸
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【单选题】Which of the following might be true according to what you hear?
A.
The plane belonged to the Mexican government
B.
The plane belonged to a US businessman
C.
The owner of the plane was a drug smuggler.
D.
It was a plane of the US police.
【单选题】Did you know whom the case _____? [ ]
A.
was belonged to
B.
was belonging to
C.
belonged to
D.
belongs to
【简答题】教育技术学专业人才的要求,专业能力结构要求包括哪六种:____、_____、_____、____、_____、_____。
【单选题】This nice magazine _____ your brother.
A.
is belonged to
B.
belongs to
C.
has been belonged to
D.
is belonging to
【单选题】Washington's teapot is more valuable as antiques because ______.
A.
it belonged to the 18th century America
B.
it had aesthetic and practical value
C.
Washington was the greatest person
D.
it played a big role in Washington's life
【单选题】China is a developing country __ the third world.
A.
belonged to
B.
belonging to
C.
which is belonged to
D.
belongs to
【简答题】下列有关收入的说法中，正确的是（ ）。
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