Smoking does great harm to our health. ______ is smoking allowed in public places.

(单选题)The underlined word “blind” in the last paragraph means ____ (单选题)There was (were) ______ outside the window actually. (单选题)What did the man by the window do when he sat up? (单选题)How many windows were there in the room? (单选题)What can’t we get from Jack Ma’s story? (单选题)Which of the following isn’t Alibaba’s business now? (单选题)Which of the following is NOT true? (单选题)According to the passage, what did Ma Yun use to be? (单选题)Which word suddenly came into Ma Yun’s mind when he was havi (单选题)30.（ ）