皮皮学，免费搜题
登录
搜题
【单选题】
病人,男性, 30 岁。因车祸受伤,急诊至医院。见右股部中段明显肿胀、青紫,患处有假关节活动(异常活动)。 X 线检查示右股骨干中段粉碎性骨折。其他检查未见明显异常。 住院后行牵引术,正确的护理是A.
．保持床体向右倾斜
B.
．保持床体向左倾斜
C.
．保持床体水平
D.
．保持床尾（足端）抬高
E.
．保持床头（头端）抬高
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】A company with an operating income of $10,000 and a contribution margin ratio of 50% has a margin of safety of:
A.
$20,000
B.
$10,000
C.
$30,000
D.
It is not possible to determine the margin of safety from the information provided.
【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】计算机病毒具有破坏性、隐蔽性、传染性、潜伏性和______等主要特点。
【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。
【简答题】计算机病毒具有破坏性、隐蔽性、（）、潜伏性和激发性等主要特点。
【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.
【单选题】The contribution margin is calculated as:
A.
Sales revenue minus cost of goods sold
B.
Sales revenue minus variable cost of goods sold
C.
Sales revenue minus total variable expenses
D.
Sales revenue minus total fixed expenses
【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
相关题目：