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【单选题】
石油中的非烃类组成对原油加工和产品质量会带来不利影响,其中使油品颜色变差,粘温性变差,燃烧后形成积碳,增加磨损的是( )
A.
含硫化合物
B.
含氮化合物
C.
胶质和沥青质
D.
含氧化合物
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参考答案:
举一反三
【简答题】A.The faster B.The fast C.The better
【单选题】屈腿仰卧起坐动作主要可发展( )
A.
髂腰肌的力量
B.
胸锁乳突肌和腹肌的力量
C.
脊柱屈肌与伸肌的力量
D.
竖脊肌与斜方肌的力量
【单选题】男性,60岁,活动中突然出现头痛,右侧肢体瘫。查体:右侧同向性偏盲,右侧中枢性偏瘫,右偏身痛觉减退,右下肢病理征(+)。最可能的病变部位在
A.
大脑皮层
B.
内囊
C.
中脑
D.
桥脑
E.
延髓
【单选题】【C13】
A.
make the best of
B.
get the best of
C.
have the better of
D.
get the better of
【单选题】10 高速重载且散热条件不良的闭式齿轮传动,其最可能出现的失效形式是 ______ 。
A.
轮齿折断;
B.
齿面磨粒磨损;
C.
齿面塑性变形;
D.
齿面胶合;
【单选题】What really makes Jane ill?
A.
Her poor health
B.
Her being locked in the Dark red house
C.
Her being caught in the rain.
D.
Her being left alone in the bedroom.
【单选题】What is the main concern of man on the fourth level?
A.
The more foods the better.
B.
The more mental satisfaction the better.
C.
The more 'luxury' items the better.
D.
The more earnings the better.
【单选题】Remember, class. _ you work, _ result you'll get. [      ]
A.
The better, the harder
B.
The harder, the better
C.
The hard, the better
【单选题】When should we hand in the homework?
A.
The more, the better.
B.
The sooner, the better.
C.
The quick, the better.
D.
The faster, the better.
【单选题】A) the larger C) the smaller B) the less D) the better
A.
the larger
B.
the less
C.
the smaller
D.
the better
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