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【判断题】
总动脉直接发自头臂干,右颈总动脉起于主动脉弓。A.
正确
B.
错误
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举一反三
【单选题】下列关于酶促化学修饰调节特点的叙述，不正确的是
A.
调节过程一般不消耗能量
B.
催化效率比变构调节效率高
C.
磷酸化和脱磷酸化是最常见的酶促化学修饰
D.
一般属此类调节方式的酶具有(高)活性和无(低)活性形式
【多选题】风险提示发布后,旅行社应当根据风险级别采取的措施有( )。
A.
四级风险的，加强对旅游者的提示
B.
三级风险的，采取必要的安全防范措施
C.
二级风险的，停止组团或者带团前往风险区域；已在风险区域的，调整或者中止行程
D.
一级风险的，停止组团或者带团前往风险区域，组织已在风险区域的旅游者撤离
【简答题】旅游风险提示发布后，旅行社应当根据风险级别采取哪些措施?
【简答题】驼峰由推送部分、溜放部分和（ ）三部分组成。
【单选题】The author implies which of the following happened to new lands that are part of the British Empire?
A.
They were not considered equal to Britain itself.
B.
They established a separate empire of their own.
C.
They had an equal share in the government of the empire.
D.
They were ruled by a group of peers.
【单选题】Speakers' Comer located in ______, where speaker can deliver their eloquent speech.
A.
British Museum
B.
Westminster
C.
Hyde Park
D.
Greater London
【单选题】How did people in colonies respond to the Tea Act?
A.
They showed their loyalty to the British government.
B.
They were dedicated to the Revolutionary War.
C.
They paid nearly $1 million to the EIC.
D.
They threw a huge amount of tea into Boston Harbor.
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