下列氮肥中,氮元素的质量分数最大的是( )
A.NH4Cl
B.(NH4)2SO4
C.NH4NO3
D.CO(NH2)2
答案:D
面色白而虚浮者主()
A.阳气不足
B.营血亏虚
C.阳气暴脱
D.中寒腹痛
E.阳虚水泛
John was________to learn the news that he was rejected by the committee.[ ]
A. let down
B. put down
C. noted down
D. taken down