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【单选题】
自从1983年第一株转基因植物问世以来,已有数十种乃至上百种转基因植物在世界各地的实验室中诞生,随着转基因技术发展,“基因污染”应运而生,关于基因污染的下列说法不正确的( )A.
转基因植物的果实或其他部分作为食物可能会引起食用者产生不良反应
B.
转基因植物可能与它们的近缘野生种发生自然杂交，可能破坏生态系统的稳定性
C.
基因污染是一种不可以增殖的污染
D.
为了防止转基因的扩散，在大面积种植时，必须在周围设置缓冲带作物
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【单选题】Will you _________more sugar _________your coffee?
A.
add，up
B.
add to，/
C.
add，to
D.
add up，to
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【单选题】In the given situation, which one of the instructions is correct?The water has to be boiled before you add the sugar.
A.
Boil the sugar before you add the water
B.
Boil water and sugar
C.
Put the sugar in the water and boil it
D.
Boil the water first, then add the sugar
【单选题】You can _____ some sugar _____ the water. [ ]
A.
add; /
B.
add; into
C.
add; to
D.
add up to; /
【简答题】附加题。 Do you want to learn cooking? Let me tell you some cooking tips. ◆Wash vegetables before peeling or cutting them. ◆Peel vegetables as thinly as you can. ◆Put potatoes in water after cutting them,...
【单选题】Sugar______naturally in fruit, so eating fruit can add to the contents of sugar inside our body.
A.
happens
B.
occurs
C.
appears
D.
forms
相关题目：
【单选题】Will you _________more sugar _________your coffee?
A.
add，up
B.
add to，/
C.
add，to
D.
add up，to
【单选题】You can _____ some sugar _____ the water. [ ]
A.
add; /
B.
add; into
C.
add; to
D.
add up to; /