Phát biểu nào sau đây là không đúng khi nói về amin?

A. Isopropylamin là amin bậc một.

B. Metylamin là chất khí ở nhiệt độ thường.

C. Ở nhiệt độ thường, tất cả các amin đều tan nhiều trong nước.

D. Anilin không làm đổi màu quỳ

Mark the letter A, B, C or D to indicate the sentence that best combines each pair of sentences in the following questions.

Question.“If I were you, I would go to the doctor.” David said to Claudia

A. David advised Claudia not to go to the doctor.

B. David told Claudia that he would go to see the doctor.

C. David advised Claudia to go to the doctor.

D. David told Claudia to become a doctor

Mark the letter A, B, C or D to indicate the sentence that best combines each pair of sentences in the following questions.

Question. I spent a long time getting over the disappointment of losing the match.

A. It took me long to stop disappointing you.

B. Getting over the disappointment took me a long time than the match.

C. Losing the match disappointed me too much

D. It took me long to forget the disappointment of losing the match.

Tìm x?

x  : 5 = 123 (dư 4)