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【單選題】
利用高濃度食鹽溶液殺菌防腐的原理是 ( )
A.
由于滲透作用，使細菌細胞的水滲出而死亡
B.
由于食鹽是中性，不適于細菌生長
C.
由于食鹽中氯有殺菌作用
D.
由于高濃度食鹽溶液的水分不足，以致細胞不能生存
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舉報參考答案：
舉一反三
【單選題】What does the underlined word “impact’’ most probably mean?
A.
order
B.
impression
C.
expression
D.
effect
【單選題】What is the best title of the passage?
A.
Different styles of the umbrella.
B.
The history of the umbrella.
C.
How the umbrella was invented.
D.
Why the umbrella was invented.
【單選題】According to Dr. Tom Heffernan, the findings_______.
A.
would be really a surprise to the public
B.
would contribute to fighting against smoking
C.
would be used in real world memory test
D.
would be nothing new to the researchers
【單選題】What will Dr. Heffernan and Dr Terence O’Neil do?
A.
Investigate the effects of third-hand smoking.
B.
Do research on how smoking affects passive smokers.
C.
Find ways to persuade people to quit smoking.
D.
Study whether giving up smoking affects memory.
【單選題】Steve Jobs was ________ .
A.
a great inventor
B.
a successful businessman
C.
a creative designer
D.
both B and C
相關題目：
【單選題】What does the underlined word “impact’’ most probably mean?
A.
order
B.
impression
C.
expression
D.
effect
【單選題】What is the best title of the passage?
A.
Different styles of the umbrella.
B.
The history of the umbrella.
C.
How the umbrella was invented.
D.
Why the umbrella was invented.
【單選題】According to Dr. Tom Heffernan, the findings_______.
A.
would be really a surprise to the public
B.
would contribute to fighting against smoking
C.
would be used in real world memory test
D.
would be nothing new to the researchers
【單選題】What will Dr. Heffernan and Dr Terence O’Neil do?
A.
Investigate the effects of third-hand smoking.
B.
Do research on how smoking affects passive smokers.
C.
Find ways to persuade people to quit smoking.
D.
Study whether giving up smoking affects memory.
【單選題】Steve Jobs was ________ .
A.
a great inventor
B.
a successful businessman
C.
a creative designer
D.
both B and C
參考解析：
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