【简答题】在纯水中,H + 浓度 OH - 浓度。(填“大于”、“小于”或等于)
【单选题】CSS作为一种 ( ) ,用于为HTML文档定义布局。
【单选题】The author' s main concern in this .passage is to______
A.
point out the role the workaholic plays in the American economy.
B.
defend people who are addicted to work.
C.
encourage us not to worry about our imperfection.
D.
consider the difficulties that confront us at middle-age.
【单选题】听力原文:M: As a means of international settlement, what is the main role of a credit card? W: Its main role is to transfer the payment obligation from payer to bank. It makes the payment safer for the ex...
A.
It is to transfer the contract from bank to customer.
B.
It is to transfer the payment obligation from buyer to seller through banks.
C.
It is to transfer the confirmation from the issuing bank to confirming bank.
D.
It is to transfer the documents from advising bank to issuing bank.