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【单选题】
热雷暴的形成原因是A.
地面水汽蒸发
B.
地面受热不均
C.
冷空气冲击暖空气而形成上升运动
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举一反三
【单选题】自主神经系统的功能特点是
A.
所有的组织器官都接受交感和副交感神经的双重支配
B.
自主神经的外周作用与效应器本身的功能状态无关
C.
自主神经对效应器的支配一般表现为紧张性作用
D.
副交感神经的主要作用在于使机体适应环境的急剧变化
【单选题】None of you _______ to stay until the game is over, if you do not want to.
A.
must
B.
needn’t
C.
has
D.
haven’t
【单选题】The passage tells that in Japan______.
A.
the boss is usually the last to leave the office
B.
the boss is usually the first to leave the office
C.
workers are busiest just before going home
D.
workers are usually busier than the boss
【单选题】Not until the game had begun______at the sports guound.
A.
had they arrived
B.
would they have arrived
C.
did they arrive
D.
should they have arrived
【简答题】Not until the had begun ________ at the sports ground. A) had he arrived B) would he have arrived C) did he arrive D) should he have arrived
【单选题】自主神经的主要功能特点
A.
内脏器官一般受交感和副交感神经双重支配
B.
具有紧张性作用
C.
功能相互拮抗，两者对立统一，相互配合
D.
受效应器功能状态影响
E.
以上都是
【多选题】自主神经的功能特点是:
A.
交感-肾上腺系统常作为整体被动员参与应急
B.
自主神经中枢具有紧张性作用
C.
交感,副交感同时支配一效应器官,且有对立统一的活动
D.
递质破坏较快,比运动神经后作用时间短
E.
潜伏期长、作用持久
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