一个汉字在计算机存储器中占用两个字节。

阅读理解

     ( l )Da Shan, a Canadian, is perhaps China's most famous foreigner. He speaks Chinese well. He

was born in 1965. He (2) started to learn Chinese when he studied at Toronto University. In order to

remember more Chinese words, (3)wrote, he, them, often, on, cards, small. Li . But he would only

memorize words he met with while reading, listening or talking in the following two weeks. "There's no

use learning words that don't appear often", he said. "And the best way to learn a foreign language is to

keep using it and understand the culture behind it, or you'll forget everything quickly."

      Da Shan says it is important to get into the language environment. (4)与中国朋友交谈  has helped

him learn not only the words, but also the country and its people.

1. 请将(1)处的句子翻译成汉语.

2. 请用适当的词替换(2)处的单词.

3. 将(3)的单词组合成一个完整的句子.

4. 将(4)处的短语译成英语.

5. What does Da Shan think is the best way to learn a foreign language?

男，25岁，3天前抬重物扭伤腰部，服芬必得，卧床休息，腰痛无缓解，出现右腿麻木疼痛，右直腿抬高40°～50°阳性，加强试验阳性，经检查诊断腰4/5椎间盘突出症。

经半年保守治疗，症状无明显缓解，右小腿前侧和内侧痛觉明显减退，伸长肌肌力Ⅱ级，椎管造影示腰椎间盘突出，压迫硬膜囊，腰神经根袖未显影，应选择下列哪种治疗（）

A.麻醉下推拿

B.服中药，理疗，牵引

C.椎间盘内注射强的松龙

D.全椎板减压术

E.半椎板减压，髓核摘除，神经根松解

PaO₂为95mmHg时，每100ml血中溶解的氧为（）

A.0.29ml

B.40ml

C.29ml

D.2.9ml

E.35ml

与食品营养价值无关的是

A．营养素的种类
B．营养素的数量
C．营养素问的相互比例
D．消化、吸收和利用率
E．食品的来源

在重物提升到最高点时，定滑车和动滑车的间距要大于安全距离，并且钢丝绳的偏角α不能大于（）。

A.2°

B.3°

C.4°～6°

D.8°