单项选择题 A （ ） is a conditional written undertaking given by bank on the request of an importer to pay at sight or at determinable future date a certain amount of money to the exporter against stipulated documents. A、letter of creditB、telegraphic transferC、demand draftD、document against payment

单项选择题 The man would like to have _______.

单项选择题 【单选题】常绿树适宜( )移栽。