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【单选题】
下列描述错误的是A.
同时口服华法林和氟伐他汀钠导致横纹肌溶解
B.
氯丙嗪与普萘洛尔合用导致心率加快、血压升高
C.
长期服用格列苯脲的糖尿病患者因细菌性感染口服磺胺甲 唑导致低血糖
D.
长期服用地加服红霉素后第3天出现地中毒
E.
口服对乙酰氨基酚后继续饮酒发生肝损伤
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【简答题】电路如图：求总电流I及I 1 ,I 2 ,I 3 ,I 4 。
【单选题】Refer to the above data. The contribution margin ratio is:
A.
40%
B.
50%.
C.
60%.
D.
Some other percentage.
【单选题】A company with an operating income of $72,000 and a contribution margin ratio of 56% has a margin of safety of:
A.
$40,320.
B.
$128,571.
C.
$163,636.
D.
It is not possible to determine the margin of safety from the information provided.
【简答题】根据对话内容，判断句子正(√)误(×)。 Amy: What can you do at home, Chen Jie? Chen Jie: I can set the table and do the dishes. What about you, Amy? Amy: I can make the bed. Chen Jie: Can you wash the clothes? Amy: No,...
【简答题】计算机病毒具有破坏性、隐蔽性、潜伏性、激发性和（）等主要特点。
【单选题】Contribution margin is calculated as
A.
total revenue – total fixed costs.
B.
total revenue – total manufacturing costs (CGS).
C.
total revenue – total variable costs.
D.
operating income + total variable costs.
【判断题】The contribution margin less traceable fixed costs is termed the performance margin.
A.
正确
B.
错误
【单选题】电路如图所示,试判断电路中电流I1与I2 、I3、 I4
A.
I1=I2+I3+I4
B.
I2=I1+I3+I4
C.
I3=I1+I2+I4
D.
I4=I1+I2+I3
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