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【单选题】
地面点的空间位置是用（ ）来表达的。A.
地理坐标
B.
平面直角坐标
C.
坐标和高程
D.
角度、距离、高程
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举一反三
【简答题】油脂加工过程中的氢化反应会使多不饱和脂肪酸增多而单不饱和脂肪酸减少。 （ ）
【简答题】The advertising company recently hired a designer ____________had once won a prize in a national contest. A) whose B) which C) whom D) who
【单选题】The people at the party were worded about Jane because no one was aware ______ she had gone.
A.
in which
B.
of where
C.
of which
D.
in that
【单选题】Your math instructor (would have been) happy to give you a makeup examination (had you gone) and (explained) that your parents (had been) ill at the time.
A.
would have been
B.
had you gone
C.
explained
D.
had been
【简答题】of winning the prize. What were better, I had useful 81______
【单选题】P／S比值是指（ ）
A.
饱和脂肪酸／多不饱和脂肪酸
B.
多不饱和脂肪酸／饱和脂肪酸
C.
多不饱和脂肪酸／单不饱和脂肪酸
D.
不饱和脂肪酸／饱和脂肪酸
E.
饱和脂肪酸／不饱和脂肪酸
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