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【多选题】
食物的化学性污染来源主要有( )。A.
来自生产、生活和环境中的污染物
B.
包装材料
C.
食品加工存储中产生的物质
D.
滥用食品添加剂
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【简答题】我国的税款征收方式主要有（ ）。
【简答题】我国的税款征收方式主要有（ ）。
【单选题】根据以下内容回答题： As contrasts go，there are few other pairs of culture as distinct from each other as the Japa-nese and the Americans．Japan’s many centuries of history and especially its Buddhist heritage ha...
A.
most obvious
B.
slightest
C.
Same
D.
less suitable
【简答题】Work in pairs. There are many kinds of business organisations and various terms for them. Can you differentiate them? Read the chart below and match each type of business organisation with its corresp...
【简答题】我国的税款征收方式主要有（ ）。
【单选题】How many non-bonding pairs of electrons are there in a nitrogen molecule?
A.
0
B.
1
C.
2
D.
3
【简答题】Read the following pairs of thesis statements. Tick the one in each pair that you think is better. Discuss your answers with a partner. a. ............There are several advantages of owning a car, but...
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