维生素B2缺乏可表现为（）
A.夜盲症
B.脂溢性皮炎
C.牙龈出血
D.多发性神经炎
E.贫血
参考答案：B
.These are all ________houses for the homeless.
A．newly – building
B．newly-builder
C．new - building
D．newly - built
手机充值卡的充值范围？
