Scientists believe the domestic epidemic outbreak ( ) since October 2019.

(单选题)Why did Wayne write the e-mail? ( ) (单选题)What can be inferred about Mr. Wang? ( ) (单选题)What is the purpose of the memorandum? ( ) (单选题)What can be inferred about Sean Gomez? ( ) (单选题)Who is exempted from attending the workshop? ( ) (单选题)What is the purpose of the e-mail? ( ) (单选题)How many days will the workshop last? ( ) (单选题)What is mentioned about the workshop? ( ) (单选题)How many days after the store sent out its bill did Ms. Jone (单选题)When should Ms. Jones contact Julie London? ( )