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【单选题】
我国《企业财务通则》关于企业员工福利项目列支说法正确的有（）。 ①企业应当为高危作业的职工缴纳团体人身意外伤害保险费 ②企业应当依法为职工支付基本医疗、基本养老、失业、工伤等社会保险费，所需费用直接作为成本（费用）列支 ③企业可以为职工建立补充医疗保险和补充养老保险，所需费用全部从成本（费用）中提取 ④企业可以部分承担员工购买住房、支付业务管理费等支出A.
①②
B.
①③
C.
②③
D.
②④
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【简答题】中国是茶树的原产地，又是最早发现茶叶功效并栽培茶树、制成茶叶的国家。（ ）
【多选题】下列关于利润分配说法正确的有( )。
A.
企业的盈余公积就是法定盈余公积
B.
企业在弥补亏损、提取盈余公积后才可以向股东分配利润
C.
企业应当直接根据当年实现的利润分配股利
D.
如果当年无利润，就可以不进行利润分配
E.
即使企业当年实现了净利润，也可以不进行分配
【简答题】就今年发生在泰国的旅游安全事故进行统计分析,找出泰国旅游安全最大的风险是什么,作为旅游从业人员如何安排旅游活动,保证游客的安全,减少游客的损失。
【多选题】How are the glycogen degradative and synthetic pathways coordinated and regulated?
A.
Fasting cells can mobilize glucose that has been stored in the form of glycogen, a branched polymer of glucose . This large polysaccharide is stored as small granules in the cytoplasm of many animal cells, but mainly in liver and muscle cells . The synthesis and degradation of glycogen occur by separate metabolic pathways, which can be rapidly and coordinately regulated to suit an organism’s needs.
B.
When more ATP is needed than can be generated from food-derived molecules available in the bloodstream, cells break down glycogen in a reaction that is catalyzed by the enzyme glycogen phosphorylase. This enzyme produces glucose 1-phosphate, which is then converted to the glucose 6-phosphate that feeds into the glycolytic pathway.
C.
Like glycolysis and gluconeogenesis, the glycogen degradative and synthetic pathways are coordinated by feedback regulation. In this case, enzymes in each pathway are allosterically regulated by glucose 6-phosphate, but in opposite directions: in the synthetic pathway, glycogen synthetase is activated by glucose 6-phosphate, whereas glycogen phosphorylase, which breaks down glycogen, is inhibited by glucose 6-phosphate, as well as by ATP.
D.
This regulation helps to prevent glycogen breakdown when ATP is plentiful and to favor glycogen synthesis when the glucose 6-phosphate concentration is high. The balance between glycogen synthesis and breakdown is further regulated by intracellular signaling pathways that are controlled by the hormones insulin, epinephrine, and glucagon.
【单选题】Windows的“即插即用”功能是指Windows能对( )。
A.
某些新安装的软件自动识别
B.
某些新插接的硬件自动识别
C.
一切新插接的硬件自动识别
D.
一切新安装的硬件和软件自动识别
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