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【单选题】
关于总杠杆系数，下列说法不正确的是（ ）。A.
总杠杆系数=经营杠杆系数X财务杠杆系数
B.
是普通股每股收益变动率与息税前利润变动率之间的比率
C.
反映产销量变动对普通股每股收益变动的影响
D.
总杠杆系数越大，企业风险越大
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举一反三
【简答题】治疗模式的特征是什么?
【单选题】In the four definitions of language, which one is different from others?
A.
“Language is a purely human and non-instinctive method of communication ideas, emotions and desires by means of voluntarily produced symbols”.
B.
“Language is the institution whereby humans communicate and interact with each other by means of habitually used oral- auditory symbols”.
C.
“From now on I will consider language to be a set of sentences, each finite in length and constructed out of a finite set of elements”.
D.
“ Language is the system of human communication which consists of the structured arrangement of sounds into larger units ” .
【简答题】为什么化学反应通常不能进行到底?
【简答题】反应达到平衡时,宏观和微观特征有何区别?为何化学反应通常不能进行到底?