最可能发生维生素E缺乏的情况是()
A.纯母乳喂养早产儿
B.胆管闭锁儿
C.纯母乳喂养足月儿
D.低出生体重儿
E.人工喂养足月儿
参考答案:B
I _____ my homework when the door bell _____. [ ]
A. did; rang
B. was doing; was ringing
C. did; was ring
D. was doing; rang
群众路线教育实践活动以()为总要求。
A.查找不足、整顿提高
B.批评和自我批评
C.照镜子、正衣冠、洗洗澡、治治病
D.密切联系群众