题目

夏天,人们站在吊扇下吹风有凉爽的感觉,如果把一支表面干燥的温度计放在吊扇下吹风,温度计的示数将       (        )                                                       A．先降低后升高      B．不变     C．降低         D．升高 答案：B— How long do you think it will be _______ the USA recovers from the losses of the financial crisis?— Perhaps four or five years.  [     ]A. when      B. since       C. that       D. before