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【单选题】
下列哪项是功能性便秘的原因是()A.
肠梗阻
B.
Crohm病
C.
铅中毒
D.
肠粘连
E.
肠综合征
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举一反三
【单选题】We must apply what we have learned to our daily work because under no circumstances ________ from practice .
A.
should theory separate
B.
should theory be separated
C.
theory should separate
D.
theory should be separated
【单选题】We must apply what we have learned to our daily work because in no case _____ from practice.
A.
should theory separate
B.
should theory be separated
C.
theory should separate
D.
theory should be separated
【简答题】机床中的各开关按钮和键是否正常灵活是( )首先应检查的项目
【单选题】We must apply what we have learned to our daily work because in no case_____ from practice.
A.
should theory separate
B.
theory should be separated
C.
theory should separate
D.
should theory be separated
【简答题】ABS常用的轮速传感器一般为()和()。
【简答题】前、后轮地面法向反作用力是由静态轴荷反作用力,_______________,空气升力和滚动阻力偶矩四部分组成。/填空题(第二套)—分值:1分
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