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【简答题】
毛细管电泳技术的不足有哪些?并简要分析其原因。
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反馈参考答案：
举一反三
【简答题】In China, parents often tell their kids not to waste food. However, it's reported that a lot of food is wasted in restaurants every day. Many people say when they eat out, they usually order a lot of ...
【单选题】Fast food is often called ‘junk food’ because _____________.
A.
some people think it is unhealthy and full of fat
B.
fast food chains produce enormous amounts of waste
C.
it is no longer fresh food
D.
Both A and B.
【简答题】Food is scarce and more often than not they go hungry. (英译汉)
【单选题】Food was ________ during the famine. It was often seen that people sold their children for a sack of corn.
A.
available
B.
less
C.
few
D.
scarce
【单选题】According to Lily, why do supermarkets often discount food after 4 p.m.?
A.
The food doesn’t sell well.
B.
The food is going to expire.
C.
They want to help customers in need.
D.
They want to introduce new products.
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