氯化消毒饮用水时，杀灭水中细菌以及氧化水中有机物和还原性无机物所消耗的氯量为（）。A

口服治疗量的维生素D治疗佝偻病，其合理时间是

A．至佝偻病痊愈

B．至3岁

C．至骨骼体征消失

D．持续用1个月

E．持续用1年

用括号中所给词的适当形式填空。

1. She is___     _ (outgoing) than her friend Tina.

2. Here          _ (be) some photos of my family.

3. Li Na is as __________ (good) at sports as her sister.

4. We all enjoy________ (stay) at home on weekends nowadays.

5. My favorite _________ (subject) are physics and chemistry.

6. The good magician makes me ____________ (laugh).

7. Should friends be_______________ (difference) or the same?

8. It's not necessary_____________ (wear) the most beautiful clothes in school.

9. Stop______________ (make)much noise. The baby is sleeping.

10.I think this book is  _(interesting) than that one.

在IR序列中，如果某一组织的T1值接近反转时间，则该组织在图像上表现为（）

A.信号增强

B.信号较强

C.信号抑制

D.中等信号

E.无信号

下面程序段的输出结果是______。public class Test{ public static void main(String args[ ]){ int[ ]a=new int[11]； int[ ]p=new int[4]； int k=5； for(int i=1；i＜=10;i++) a[i]=i； for(int i=1；i＜=3;i++) p[i]=a[i*i]； for(int i=1;i＜=3;i++) k=k+p[i]*2； System.out.println(k)； } }

A．37

B．31

C．33

D．35