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【单选题】
原油按其含硫量分类，当含硫为0.5%～2.0%时，该原油属于( )。A.
低硫原油
B.
含硫原油
C.
高硫原油
D.
特高硫原油
拍照语音搜题，微信中搜索"皮皮学"使用
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举一反三
【单选题】______ a lot of money made the study abroad possible for him.
A.
Tom saved
B.
Tom has saved
C.
Tom's having been saved
D.
Tom's having saved
【简答题】指出下列钢件的最终热处理工艺并说明获得的组织 1 45钢的小轴(要求综合机械性能好) ; 2 60钢簧; 3 T12 钢锉刀。
【简答题】如果一个有向图中没有 ,则该图的全部顶点可能排成一个拓扑序列。
【单选题】----Tom has made great progress recently. ---- _________ and _________ .
A.
So he has, so you have
B.
So he has, so have you
C.
So has he, so have you
D.
So has he, so you have
【简答题】5个变量可构成 个最小项, 全体 最小项 之和 为 。
【单选题】____ the help of the teacher, Tom has made rapid progress ____ his studies. [ ]
A.
For; at
B.
Of; for
C.
By; on
D.
With; in
【单选题】Tom, who is always shy in public, has made some friends at school, ______ has pleased his parents.
A.
who
B.
where
C.
that
D.
which
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