The rate __at which_____ a material heats up depends on its chemical composition.这是正解 我想知道为什么 为什么用at,

The rate __at which_____ a material heats up depends on its chemical composition.这是正解 我想知道为什么 为什么用at, John couldn't stay in the house which_(在粉刷)(paint) the rate capacity effect the rate factor comparison rate across the this is one of the book which_?_sold in that bookstore.A.is B.are c.have D.hasthis is one of the book which_?_sold in that bookstore.A.is B.are c.have D.has the firs－rate team the net rate 中的 net at almost the same rate He sits at the back of the classroom.He___ __at the bank of the classroom. rate Exchange rate regimes and the price of exchange rate risk Which of the following is not a component of an interest rate?Expected inflation rate.Credit riskExpected inflation rate.Credit risk rate.Pure rate.Opportunity cost rate Give hte application to the man (sit)__at the desk,please Go __this street and turn __at the __crossing .Walk __the bridge.The hotel Hw looked __at the sky but could __see anything strange (hard) he wants to make a __at the meeting next week(speak)说明理由 They were __ __at the 2008 Olympics and ___ many things ____ foreigners.