患儿8个月，平时经常腹泻，近2个月面色苍白，食欲缺乏，喜吃土，精神不活泼。查体：口唇、结膜苍白，皮肤无出血点，浅表淋巴结不大，心率120次／min，心尖部Ⅱ级收缩期杂音，腹软，肝肋下2cm，脾肋下2.5cm

为确诊，下列哪项检查最不重要（）

A.血清铁测定

B.血清铁蛋白测定

C.血清总铁结合力测定

D.血浆蛋白测定

E.血常规检查

根据句意及汉语的提示,补全单词.

1. He is _____ (高的) of the two boys.

2. Which desert is_____ (大的) in the world?

3. Things have gone from bad to _____ (更差).

4. The trees can prevent the wind from _____ (刮) the earth away.

5.  He jumped twice as _____ (高) as his friend.