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【单选题】
椎管内麻醉后的病人枕平卧6小时,其目的是A.
预防脑压升高
B.
预防颅内压降低引起头痛
C.
预防脑缺血
D.
预防脑部感染
E.
有利于脑部血液循环
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反馈参考答案：
举一反三
【简答题】We need enough food to ( ) our strength.
【单选题】We need enough food to ___________ our strength.
A.
worsened
B.
sporadically
C.
maintain
D.
buffet
E.
servings
【单选题】is used to pr the car from skidding on a wet and slippery road.
A.
ESC
B.
ABS
C.
EBA
D.
EBD
【单选题】He _______________ when he rode his motorbike on the slippery road.
A.
took a risk
B.
take part in
C.
took a break
【单选题】We need enough food to ___________ our strength.
A.
underestimate
B.
grab
C.
maintain
D.
underestimate
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