某砂土采用标准贯入试验，实测其锤击数为12，钻杆杆长L=10.0m，该土的密实度为（

根据汉语提示填写单词。

1. His father's coming back ___________(使得) him feel very happy.

2. Today I came to school ___________(没有) breakfast.

3. I was too busy and ___________(错过) the film "Titanic".

4. I will tell you when he __________(到达) my home.

5. Is the license in one of your __________(衣服口袋) ?

6. --What's wrong? --I ___________(割) one of my fingers just now.

7. If someone ___________(推) hard, the old man will fall over.

8. There are so many ___________(参观者) in the West Lake.

9. You must keep __________(安静) in class.

10. He __________(改变) his name when he was in the USA.

女性，38岁。进食大量酸菜后出现发绀，吸氧后发绀无缓解。该患者血中的高铁血红蛋白含量至少为（）.

A.10g/L

B.20g/L

C.30g/L

D.40g/L

E.50g／L

原发性帕金森病黑质中最特征性病理表现为（）

A.神经元减少50%，神经元胞质减少

B.多巴胺神经元减少50%，神经元胞质内有Lewy体

C.多巴胺神经元减少20%，神经元变性

D.多巴胺神经元增加，乙酰胆碱神经元减少50%

E.多巴胺神经元增加50%，神经元胞质内有Lewy体

重症急性炎症性脱髓鞘性多发性神经病的治疗成功的关键是（）

A.病因治疗

B.皮质类固醇治疗

C.辅助呼吸

D.预防感染

E.对症治疗

为了减少气温的影响，道床板应在双块式轨枕精调后（）内进行混凝土浇注。