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【简答题】
右图是反射弧结构模式图,a、b分别是放置在传出神经和骨骼肌上的电极,用于刺激神经和骨骼肌;c是放置在传出神经上的电位计,用于记录神经兴奋电位;d为神经与肌细胞接头部位,是一种突触。 正常时,用a刺激神经会引起骨骼肌收缩;传出部分的某处受损时,用a刺激神经,骨骼肌不再收缩,根据本题条件,完成下列判断实验: ①如果用()刺激神经,在()处不能记录到电位,表明传出神经受损。 ②如果用()刺激骨骼肌不收缩,表明骨骼肌受损。 ③如果用()刺激神经,在()处记录到电位,骨骼肌不收缩;用()刺激骨骼肌,骨骼肌收缩,表明部位()受损。
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举一反三
【简答题】Where can this passage be found?
【单选题】Which one is not needed, when you are checking in.
A.
ID card
B.
passport
C.
E-ticket
D.
student card
【单选题】Which is not needed to be provided at the check-in counter?
A.
ticket
B.
identity proof
C.
passport
D.
cargo hold
【单选题】—Could you please tell me ? —He is twenty.
A.
where be is from
B.
how old he is
C.
when he will leave
【单选题】When you book a room in a hotel, which information is not needed?
A.
Number of room
B.
Types of room
C.
Arrival date
D.
Your Wechat number
【单选题】Of the following which one is not needed in a lifeboat?
A.
Foo
B.
Anchor
C.
Manual pump.
D.
Buoyancy oar.
【单选题】Which one is not needed in applying for a job?
A.
C.V.
B.
Resume
C.
Driving License
D.
Application Letter
【简答题】液压支架按控制方式分为液压手动控制支架和( )支架。
【单选题】my baseball? It’s under the chair.
A.
Where’s
B.
Where
C.
Where’re
D.
Where be
【判断题】The fact that people are willing to pay much more for a diamond, which is not needed for survival, than they are willing to pay for a cup of water, which is needed for survival, is an example of irrat...
A.
正确
B.
错误
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