You’d better not phone the manager between 7and 8 tomorrow evening; he _______an

important meeting then.

A．will have

B．would have

C．will be having

D．will have had

维生素D缺乏性佝偻病开始维生素D治疗时出现手足搐搦症是由于（）

A.补钙不及时

B.维生素D剂量过大

C.甲状旁腺反应不足，血钙下降

D.血磷迅速下降

E.维生素D剂量过小