婴儿用子食物特殊动力作用所需能量占总需能量的百分比是
A.3%~4%
B.4%~5%
C.5%~6%
D.7%~8%
E.9%~10%
参考答案:D
下列哪个是B细胞来源的淋巴瘤
A.多发性骨髓瘤
B.非霍奇金淋巴瘤
C.蕈样霉菌病
D.Burkitt淋巴瘤
E.恶性组织细胞增多症
This is one of the most interesting questions that ____ asked. [ ]
A. have
B. has
C. have been
D. has been