关于妊娠对糖尿病的影响，以下哪项描述不正确（）

A.孕早期由于妊娠呕吐，空腹血糖降低，应及时减少胰岛素用量

B.随妊娠进展，抗胰岛素物质不断增多，机体对外源性胰岛素敏感性下降，胰岛素用量应相应增加

C.分娩前体力消耗大，进食少，易发生低血糖

D.分娩阵痛及精神紧张可使血糖发生较大波动

E.产后胰岛素用量应相应增加

______, but the idea of having to work more than ten hours a day without weekends discouraged me.

A．Wanting to be a teacher

B．Although I wanted to be a teacher

C．I had wanted to be a teacher

D．To want to be a teacher