多系统器官衰竭时肾脏产生（）
A.急性肾衰竭
B.慢性肾衰竭
C.肾前性肾衰竭
D.肾性肾衰竭
E.肾后性肾衰竭
参考答案：A
用括号中所给单词的适当形式填空。
1. He was by far _____(funny) boy I'd ever seen.
2. These children seemed _____(tire).
3. No matter where she _____(go), I'll go with her.
4. She warned us that it _____(rain)in the afternoon.
5. I will be _____(thank) if you will come.
主干电缆的芯线使用率应为（）。
A.75%-80%
B.85%-90%
C.80%。85%
D.80%-90%
