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【单选题】
男性,26岁,1年来阵发性血压升高,发作时剧烈头痛,面色苍白,心动过速。平时血压正常,且无任何症状。为明确诊断,应首先考虑的检查是A.
肾动脉造影
B.
测定24小时尿儿茶酚胺和3-甲基-4羟基苦杏仁酸VMA
C.
24小时尿17-羟皮质类固醇和17-酮类固醇测定
D.
血浆肾素活性造影
E.
静脉肾盂造影
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反馈参考答案：
举一反三
【判断题】Under the agency, the agent charges a certain amount of commission and undertakes risks and losses. ( )
A.
正确
B.
错误
【简答题】As we know, ____________(钢虽坚硬)is, it will still bend or break under certain conditions.
【单选题】Under the Company Law, a company may purchase its own shares under certain conditions. Which of the following is NOT such a condition?
A.
Where the company is to offer its shares to its senior executives
B.
Where the company is to reduce its registered capital
C.
Where the company is to fix the price of its stocks in the securities market
D.
Where the company merges with another company which holds its shares
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