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
