问题
单项选择题
双肾积水最常见的原因为
A.双输尿管狭窄
B.输尿管结石
C.下尿路梗阻
D.膀胱肿瘤
E.输尿管畸形
答案
参考答案:C
解析:[解题思路] 双侧输尿管同时发生病变的情况较少见,双肾积水的原因常为下尿路梗阻。
双肾积水最常见的原因为
A.双输尿管狭窄
B.输尿管结石
C.下尿路梗阻
D.膀胱肿瘤
E.输尿管畸形
参考答案:C
解析:[解题思路] 双侧输尿管同时发生病变的情况较少见,双肾积水的原因常为下尿路梗阻。
词形变换:选择方框里的词,并用其适当形式填空,每词只用一次。 | |
2. This pen isn't yours. I think it's ______. 3. Mr. Wang is a good ______. He works on a farm. 4. How many ______ does have every day? 5. Miss Li is a ______ teacher. He teaches us Chinese. 6. He has to ______ a friend this Sunday. 7. How about ______ to have a picnic next Sunday? 8. Mr. Wang often ______ TV on Saturday evening. 9. Wanglin's mother is a doctor and his father is a ______. 10. Look! The children are ______ on the river (河). |