正常人血液中尿素含量约占非蛋白氮的()
A.25%
B.45%
C.55%
D.60%
E.80%
参考答案:B
根据句意及首字母提示补全单词
1. This story is very i__________. We all like it.
2. I think Tom will come back s__________.
3. Jack often w__________ to his pen pal.
4. China is a c__________ with a long history.
5. He speaks French well. Is he from F__________?
资产负债表日,持有至到期投资的账面价值高于()的,企业应当计提资产减值损失。
A.公允价值
B.可收回金额
C.可变现净值
D.预计未来现金流量现值