下列人类发展的原则，属于可持续发展共同性原则的是[ ] A．鉴于人类赖以生存的自

关于导体电阻的大小，下列说法中正确的是（　　）

A．粗细相同的两条导线，长的电阻大

B．长度相同的两条导线，细的电阻大

C．同种材料制成的长度相同的两条导线，粗导线的电阻大

D．对于大多数导体来说，当温度升高时，它的电阻就会增大

有关肝的位置的描述正确的是（）

A.全部为胸廓所掩盖

B.大部分位于右下腹部

C.大部分位于腹上区和左季肋区

D.大部分位于右季肋区和腹上区

E.大部分位于右季肋区

2x+3（2x-1）=16-（x+1）

根据所给提示，完成句型转换。

1. I usually have supper at six o'clock. (改为一般疑问句)

   ______ you usually ______ supper at six o'clock?

2.The students of our class are doing morning exercises now. (改为否定句)

   The students of our class ________ __________ morning exercises now.

3. He will go to England next month. (改为反意疑问句)

    He will go to England next month, _______ ________?

4. Forty people have visited the museum. (对画线部分提问)

     _________ ____________ people have visited the museum?

5. (课改实验区考生做) Aunt Wang asked me to clean the room. (改为被动语态)

      I _________ __________ to clean the room by Aunt Wang.

    (非课改实验区考生做)

    She used the knife to cut the fruit a moment ago.(改为被动语态)

    The knife ________ ________ to cut the fruit by her a moment ago.