细菌、放线菌适宜在微酸性条件下是生长。()
参考答案:错
He will _______ his uncle’s business when he is mature(成熟的) enough to deal with the public relations.
A.hand over
B.take over
C.think over
D.go over
妊娠时患巨幼红细胞性贫血的原因除外
A.妊娠期叶酸需要量增加
B.妊娠期叶酸吸收减少
C.妊娠期叶酸排泄增加
D.妊娠期维生素B12体内储藏量少
E.由于一些原因引起维生素Bl2吸收减少