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【单选题】
下列关于动作电位的说法错误的是( )。A.
细胞膜电位是内正外负
B.
一种变化的过程
C.
受到刺激后会产生
D.
上升支是Na+内流的结果，下降支是K+外流的结果
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举一反三
【单选题】It’s reported that the police will soon ____ the case of two missing children.
A.
look into
B.
look after
C.
look upon
D.
look out
【单选题】—Excuse me, Miss Wang. Are these my new books? —Yes, please _____ them well. [ ]
A.
look at
B.
look after
C.
look up
D.
look for
【单选题】肠粘连物理因子治疗的作用不包括
A.
改善局部血液循环、促使炎症、渗出物的吸收
B.
使粘连的纤维组织软化
C.
增加肠蠕动,调整内脏功能
D.
缓解腹胀、疼痛等症状
E.
缓解肠梗阻
【简答题】阅读理解。 Do you dream of having beautiful hair like a model? Well, you can have it if you look after your hair in the right way. To get beautiful hair, you first need to get healthy. So start eating good...
【单选题】Don't worry , the children are now old enough to ______ themselves.
A.
look round
B.
look after
C.
look for
【单选题】Our teacher told us to the new words in the dictionary if we didn’t know them.
A.
look over
B.
look after
C.
look down
D.
look up
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