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【简答题】
甲企业是一家医疗器械企业，现对公司财务状况和经营成果进行分析，以发现和主要竞争对手乙公司的差异。 （1）甲公司2015年主要财务数据如下所示：假设资产负债表项目中年末余额代表全年水平。 （2）乙公司相关财务比率： 要求： 说明销售净利率、总资产周转率、权益乘数三个指标各自经济含义及各评价企业哪方面能力，并指出甲、乙公司在经营战略和财务政策上的差别。
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举一反三
【简答题】网球场地大致可以分为硬地、 、红土,共三种。
【简答题】a. 随意 , 未经事先考虑的
【单选题】Honsewives who do not go out to work often feel they are not working to their full ______.
A.
capacity
B.
faculty
C.
strength
D.
content
【多选题】Explain the three main classes of c ell-surface receptors.
A.
All cell-surface receptor proteins bind to an extracellular signal molecule and transduce its message into one or more intracellular signaling molecules that alter the cell’s behavior. Most of these receptors belong to one of three large classes, which differ in the transduction mechanism they use.
B.
1. Ion-channel-coupled receptors change the permeability of the plasma membrane to selected ions, thereby altering the membrane potential and, if the conditions are right, producing an electrical current.
C.
2. G-protein-coupled receptors activate membrane-bound, trimeric GTP-binding proteins (G proteins), which then activate (or inhibit) an enzyme or an ion channel in the plasma membrane, initiating an intracellular signaling cascade.
D.
3. Enzyme-coupled receptors either act as enzymes or associate with enzymes inside the cell; when stimulated, the enzymes can activate a wide variety of intracellular signaling pathways. Many enzyme-coupled receptors have their own enzyme activity, while others rely on an enzyme that becomes associated with the activated receptor.
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