女孩，10岁，水肿6天，伴血尿、尿少3天入院。体检：颜面、双下肢明显水肿，烦躁、气促

背诵。

1. Young children might            Superman or Batman while adults might picture a doctor or police officer.

2. Beth            a respiratory problem which made it difficult for her to breathe.

3. She grew up in and out of hospitals where she                 devices to help control her illness.

4. But she was determined, and when her eleventh birthday            , Beth was there to          her candles.

5. She proved the doctors wrong but, even though she lived past the       , she still wasn't       .

6. Beth went through several more years of nurses and doctors poking her like      but she never

    complained.

7. With all she had to deal with, you would think she would be too busy to listen to her

     friends'        -nevertheless she always found time

已知烧杯中装有200g硫酸和硫酸锌混合溶液,其中含硫酸锌12.1g。向烧杯中逐渐加入锌粒，放出气体质量与加入锌粒质量的关系如下图所示。当恰好完全反应时，所得的溶液为不饱和溶液。

请计算：

（1）m的值。

（2）原混合溶液中H₂SO₄的质量分数。

（3）恰好完全反应时，所得溶液中溶质的质量分数。

小儿身长的生长发育，陈述错误的是( )

A．出生时平均身长为50cm
B．6个月时为65cm
C．1周岁时约为75cm
D．2周岁时约为85cm
E．2周岁以后平均每年增长7～8cm

有色金属管属于非金属管。

在投资统计分析中其他投资费用种类繁多且价格变动难以一一测定，可抽取（）进行计算分析。

A.价格变化大的项目

B.投资期限长的项目

C.投资总额高的项目

D.价格变化幅度大的项目

E.投资总额低的项目