从下列肾脏疾病的检查方法中找出三种对患者损伤小的方法(不考虑放射性损伤)()
A.IVP
B.逆行肾盂造影
C.肾血管造影
D.CT
E.超声
参考答案:A, D, E
根据所给情景选择正确选项。
1. 当你欢迎客人到自己学校时,你说:[ ]
A. Welcome to our school.
B. Let's go to our school.
2. 放学了,你说:[ ]
A. School is over.
B. It's time to go to school.
3. 如果你想让别人等一会儿,你说: [ ]
A. Hurry.
B. Just a minute.
4. 若你想告诉别人“请这边走”,你说:[ ]
A. This way, please.
B. Come here.
5. 当你想表扬别人学校很美时,你说:[ ]
A. Oh, your school is beautiful.
B. Welcome to our school.
程序的三种基本控制结构是 ______。
A.过程、子程序和分程序
B.顺序、选择和重复
C.递归、堆栈和队列
D.调用、返回和转移