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【单选题】
在间接碘法测定中,下列操作正确的是( )。A.
边滴定边快速摇动
B.
加入过量 KI ，并在室温和避免阳光直射的条件下滴定
C.
在 70-80℃ 恒温条件下滴定
D.
滴定一开始就加入淀粉指示剂
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举一反三
【单选题】What happened to the 19-year-old man from Canterbury?
A.
He violated the Malicious Communications Act.
B.
He was deprived of the freedom of speech online.
C.
He was arrested by the Police for offensive action.
D.
He hired lawyer John Cooper QC to defend for him.
【单选题】What does the underlined word' speak' in the second paragraph really mean?
A.
They communicate with each other using E-mail.
B.
They use the computer language.
C.
Laptops have speakers.
D.
They make a speech to each other.
【单选题】What does 'to speak to'(Line 8, Paragraph 2)mean?
A.
To talk with.
B.
To say to.
C.
To communicate with.
D.
To respond to.
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