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【单选题】
法测定牛乳中脂肪的含量时,乳脂计的读数方法是( )。A.
读取酸层和脂肪层的最高点
B.
读取酸层和脂肪层的最低点
C.
读取酸层和脂肪层最高和最低点的平均数
D.
以上都不是
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反馈参考答案：
举一反三
【简答题】根据下列材料请回答 60～ 题： 第 60 题 When she took a mop from the small room what mum really wanted to do was＿＿＿
【简答题】请根据下面的短文回答第 56～60 题： 第 56 题 What kind of exercise burns the most calories according to the chart?
【单选题】The______of electrical energy into thermal energy is a process that is easily carried out at 100% efficiency.
A.
conversion
B.
convention
C.
conversation
D.
version
【简答题】Emotional energy is in a way different from physical energy in that the more you give, ________.
【单选题】When energy is converted from one form to another, some energy is always lost as heat.( ), no energy is over 100% efficient.
A.
In other terms
B.
In other words
C.
In another way
D.
In some way
【单选题】When energy is converted from one form to another, some energy is always lost as heat. ______, no energy conversion is ever 100% efficient.
A.
In other terms
B.
In other words
C.
In another way
D.
In some way
【单选题】根据下列材料请回答 60～63 题： 第 60 题 What is most special about Versailles according to the writer?
A.
The blurred images reflected on the windows．
B.
The number of French customers．
C.
The expensive Cuban food．
D.
The walls of mirrors．
【单选题】Which of the following statements concerning energy is correct?
A.
Energy can be created or destroyed
B.
Energy may not be transformed
C.
The total quantity of energy in the universe is always the same
D.
None of the above
【简答题】听下面一段材料，回答 17～20 题。 第 17 题 What should the students bring with them to the exam?
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