小儿有以下哪些表现应考虑有佝偻病的早期表现A．有郝氏沟及肋骨外翻 B．有方颅或兵乓头

从重整原料中切除苯母体有何利弊？

   The couple’s quarrelling and fighting last Sunday   ___each other .

    I think so . Nancy was      in the arm and she blamed that her arm       the whole week .

A．wounded ; injured ; was hurting

B．hurt ; hurt ; was hurting

C．hurt ; wounded ; was hurting

D．injured ; hurt ; was wounding

Don’t believe what he said.His story is         nothing.

A．based on

B．based of

C．based at

D．based about

为预防细菌性食物中毒，要杀灭病原体时需对食品进行（）

A.低温贮存

B.使食物中心温度达60℃以上即可

C.使食物中心温度达60℃并维持一定时间

D.使食物中心温度达80℃以上即可

E.使食物中心温度达80℃并维持一定时间

Windows Mobile手机有没有关机闹钟?