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问题 单项选择题 A1/A2型题

鉴别腹膜内型和腹膜外型的膀胱破裂，最好的方法是（）

A.导尿

B.测漏试验

C.膀胱造影

D.膀胱镜检查

E.B超

答案

参考答案：D

解析：膀胱镜检查可以直接观察到膀胱破裂的部位及类型。

单项选择题

酸中毒时，血钾浓度的变化趋向是( )

A．升高

B．下降

C．无变化

D．先低后高

E．先高后低
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单项选择题

Consider the following descriptions of approaches used in valuing real estate: Approach 1: In this approach, the present value of after-tax cash flows are calculated based on the investor’s required rate of return before the equity portion of the investment is deducted. Approach 2: In this approach, the value of land is estimated and is added to the price that would have to be paid if a property had to be replaced. Approach 3: In this approach, an appraisal price is estimated as the discounted net operating income based on the market required rate of return. Approach 4: This approach relies on examining recent transaction prices from a group of similar properties and depends on a reasonably liquid market. List in order, from Approach 1 to Approach 4, the real estate valuation methods that correspond to each of the four valuation approaches listed above.（）

A. The discounted after-tax cash flow model, the cost method, the income method, and the sales comparison method.

B. The income method, the cost method, the sales comparison method, and the discounted after-tax cash flow model.

C. The income method, the discounted after-tax cash flow model, the sales comparison method, and the cost method.
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