诊断肾动脉狭窄、肾动脉瘤等肾血管疾病的金标准为（）
A.血管造影检查
B.CTA检查
C.MRA检查
D.DSA检查
E.MRI检查
参考答案：A
用所给单词的适当形式填空
1. It's seven o'clock. Let's start _____(have) dinner.
2. I met an old friend while _____(walk) on the street.
3. It's too _____(noise) here. Let's go somewhere quiet.
4. It's rude _____(stick) your chopsticks into your food.
5. Who is _____(young) student in your class?
依据GB/T 14848-1993《地下水质量标准》，地下水质量分类指标规定Ⅰ类水浊度是不得超过( )。
A．3度
B．5度
C．10度
D．15度
