Mixed with an equal part of water, ethylene glycol, a compound commonly used as an automotive antifreeze, is effective at temperatures as low as –30 degrees Fahrenheit.
A. temperatures as low
B. temperatures so low
C. as low temperatures
D. as few
E. as little
温度可以和-30比？
c有何不可？ 作者: xiaomakunkun 时间: 2012-7-13 21:02
温度是跟–30 degrees Fahrenheit（华氏-30度）在比；另外at temperatures就是一种固定搭配，表示一种温度的状态，比方Water freezes at 0 degree celsious.
