（）。(1)实数x，y，z满足x+y+z=0(2)实数x，y，z满足xyz＜0 A．

句型转换，每空一词。

1. Hello ! I'd like to speak to John.(疑问句)

    Hi!      ___  I    __      to John?

2. Hi! Is Wang Hua at home now?(不改变原意)

    Hi! Is Wang Hua                    __      ?

3. I'll call you as soon as I get home.(不改变原意)

    I'll     ____                   as soon as I get home.

4. Sorry, she isn't in at this very moment..(不改变原意) 

    Sorry , she is    ____                  .                                                  

5. No one is called that name here..(不改变原意) 

    There is no one                   ____     here.

联合国政府间气侯变化专门委员会已经发布过（）次评估报告

记录最小能见度的具体规定是什么？

全国人大常委会规定每年九月的第三个（）为全民国防教育日。

制炭后产生止血作用的药物是（）

A.藕节

B.地榆

C.棕榈

D.荷叶

E.以上均不是