人和动物的四种基本组织中，能够接受刺激，产生并传导兴奋的组织是（） A．上皮组织

缺词填空 (共10空；每小题1分，计10分)

Eye is the w___小题1:_____ of our mind. We use our eyes to s____小题2:___ everything around us. Without eyes, nothing is left beside you b___小题3:____ darkness (黑暗).

How to protect our eyes? It's not r____小题4:____ to keep your eyes working for long time. You'd better not read in s____小题5:____ or poor light. Don't read in bed or on a moving bus. Remember to keep your books a___小题6:___ from your eyes for about a foot (英尺) and do eye e___小题7:___ every day. What's more, a good l___小题8:___ is necessary.

Follow my advice and form a good habit. It's time to say g____小题9:____ to thick g____小题10:____.

改为同义句，每空一词。

1. My dad stopped drinking two weeks ago.

  My dad _______ _______ drinking two weeks ago.

2. Are you proud of being a volunteer?

  Do you _______ _______ _______ being a volunteer?

3. We were surprised that the little girl could draw so well.

________ ________ ________, the little girl could draw so well.

4. Jane doesn’t go to work by bus any longer.

  Jane _______ _______ _______ to work by bus.

5. Andy has decided to be a scientist when he grows up.

  Andy has _______ _______ _______ to be a scientist when he grows up.

有机前体物常是指（ ）。

A．水中的有机物

B．水中能与氯形成氯化副产物的有机物

C．水中能与氯形成氯化副产物的有机物和无机物

D．水中能与氯形成氯化副产物的化合物

E．水中能与氯形成氯化副产物的无机物

银行承兑汇票的大写金额红水线栏，为水溶性荧光油墨印制，紫光灯下呈（）反应

A、淡红色荧光

B、红色荧光

C、淡红色

D、红色

若x和a均是int型变量，则计算完x=(a=4,6*2)后的x值为______。