酚红排泄试验(PSP)主要反映肾小管排泌功能,PSP进入血中约有多少会经正常肝脏排出()
A.10%
B.25%
C.65%
D.80%
E.90%
参考答案:B
根据汉字国标码GB2312-80的规定,二级汉字按________排列。
A.偏傍部首笔画多少
B.汉语拼音多少
C.每个字的笔划多少
D.使用频率多少
My uncle ______ in Beijing for over 10 years. Now he lives in his hometown in Fuzhou.
A.has worked
B.worked
C.had worked
D.works