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【单选题】
某山羊分娩，努责半小时，仅见胎儿右前蹄露出阴门外，产道检查发现，胎儿头颈姿势无异常，左前肢向后伸展，位于胎儿躯干之下，难产的原因是A.
肘关节屈曲
B.
肩关节屈曲
C.
腕关节屈曲
D.
腕关节屈曲
E.
头颈侧弯
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【单选题】In the last sentence of the second paragraph, 'this matter' refers to ______.
A.
the fact that a scientist's religious views derive from his whole out look on life
B.
the fact that some people believe in God while others do not
C.
the disparity of thinking between scientists and people from other walks of life
D.
the disparity in the religious conclusions drawn from the observation of natural phenomena
【简答题】A．They can not find a good math teacher. B．They can not pass the examination. C．They can not meet the requirements. D．They can not catch up with the lessons.
【简答题】A．The fact that by the 12th century paper reached Europe. B．The invention of moveable type in Asia. C．The arrival of the moveable type from Asia to Europe. D．The method of printing in large quan...
【简答题】A．They can tell people apart by how they behave. B．They can type each other. C．They can tell good people from bad ones. D．They can recognize human faces.
【单选题】What’s the main reason for Americans to go out to eat?
A.
They can meet with many friends.
B.
They can have cheaper food there.
C.
They can save time by not cooking.
D.
They can avoid washing dishes after the meal.
【简答题】A．They can buzz in to kill. B．They can hear the dry plants' cries. C．They can imitate the plants' crying. D．They can attack healthy plants in dry, hot weather.
【单选题】What can they do in the kitchen? [ ]
A.
They can cook the meals.
B.
I can sweep the floor.
C.
They can clean the bedroom.
【简答题】A．They can share it with others. B．They can buy things they want. C．They can save it. D．All-above mentioned.
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