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【单选题】
正常血糖浓度大约为5mmol／L，葡萄糖主要在肝外各组织中被利用，葡萄糖虽然极易透过肝细胞膜。但是很少进入代谢途径。其主要原因是（）A.
肝外各组织中均含有己糖激酶
B.
因血糖为正常水平
C.
肝细胞葡萄糖激酶K m 远远高于肝外组织的己糖激酶
D.
己糖激酶受产物的反馈抑制
E.
肝细胞中存在抑制葡萄糖转变或利用的因素
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举一反三
【单选题】Of the following items ______is not mentioned for which UKHO will accept no responsibility.
A.
change in the process of display or printing
B.
unauthorized changes made by licensees or other parties
C.
modifications made by licensees or other parties
D.
professional amendments
【单选题】A Denial of Service (DoS) attack is:（）
A.
an attempt to bring down a website or other online service.
B.
a prank where someone sends an unauthorized e-mail attempting to close a user’s e-mail account.
C.
stealing a user’s identity and making changes to their accounts.
D.
an attempt to change a user’s password to prevent access to a service by repeatedly guessing the user’s information.
【单选题】上世纪80年代少林寺得到空前的发展,深受世界各地人士的追棒,主要原因是一部电影的放映,这部电影是
A.
《新少林寺》
B.
《少林武王》
C.
《少林寺》
D.
《少林寺传奇》
【单选题】The fundamental information security principals include confidentiality, availability and which of the following?
A.
The ability to secure data against unauthorized disclosure to external sources
B.
The capacity of a system to resist unauthorized changes to stored information
C.
The confidence with which a system can attest to the identity of a user
D.
The characteristic of a system to provide uninterrupted service to authorized users
【单选题】Which of the following is an example of an integrity violation of e-commerce security?
A.
A website is not actually operated by the entity the customer believes it to be.
B.
A merchant uses customer information in a manner not intended by the customer.
C.
A customer denies that he is the person who placed the order.
D.
An unauthorized person intercepts an online communication and changes its contents.
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