结构推理 Questions 1 to 5 are based on the following passage. Did you know that our first 5-cent coin was not a nickel and our first "nickel" was not a 5-cent coin? The coin we now call the "nickel" originated (起源) as a silver half dime（角币）in 1792, the beginning of its 79 year life as a silver 5-cent coin. Our first nickel coins were not 5-cent pieces at all. Nickel first appeared in United States coinage（造币）with the introduction of the small size 1-cent pieces in 1856. Its composition was mostly copper (铜) and less than 1/6 nickel. The nickel caused the coin to be much lighter in color than the older copper coins. For that reason, it was sometimes called a white cent. Another common name was a "nick" --- short for nickel --- referring to its nickel content. This composition was continued in the cent into 1864. The first "nickel" 5-cent piece to be struck was the Shield Type starting in 1866. The composition of the coin was three-quarters copper and one quarter nickel, the same as today's nickels. That means the metal that gives the coin its name is only 25/% of its content! The Shield type was replaced by the Liberty Head or "V" Nickel in 1883 and the Indian Head, more commonly called the "Buffalo" Nickel in 1913. Our current "Nickel," was introduced in 1938, the result of a public competition among some 390 artists. (236 words) 1. What was the first American 5-cent coin made of? 2. When did nickel appear in the United States? 3. Why was the nickel called "white cent"? 4. How much nickel did the first "nickel" have? 5. How was the current "Nickel" was introduced?

结构推理How long does a jacket like this last me? — ______(这要看你多长时间一次).

结构推理By now I can count the blows again. The only pain I feel is in the lips I have been biting.

结构推理For the time being, they have no choice but to use the old technology, but they will soon turn to new technologies.

结构推理two or several items of commission

结构推理The greater capacity of the depth filter usually enable them to be longer before being clogged.

结构推理许多人认为这种药有助于睡眠，而我只能暗自感叹：“要是他们知情就好了。”(all can think, if...only)

结构推理negotiation

结构推理如果确实在经济上有困难，你可以申请学生贷款。(to apply for)

结构推理根据给出的短语，写出中文意思：a list of

结构推理写出以下缩略语的完整形式和中文意思：FCC

结构推理有效期限

结构推理These items are available in for the VP380 modes only．

结构推理Directions: For this part, you are allowed 30 minutes to write a composition entitled "Unemployment". Write no less than 120 words. Be sure to include the following words and phrases. Key Words: economic, reform, laid-off, workers, problem, inevitable, system, temporary, intelligence, iron bowl, knowledge

结构推理请按照中国人民保险公司的有关条款对上述货物进行投保。

结构推理根据给出的中文意思，写出单词：adv.潜在地

结构推理Use a commercially available AC plug adapter,if necessary,depending on the 10cal design ofthe wall outlet．

结构推理Its no good waiting for the bus. __________________(我们不妨走回家吧。)

结构推理这位乡下孩子接触到了城里的种种陌生的事物。他感到十分惊讶，仿佛自己进入了未来世界一般。(to be exposed to; as if)

结构推理写出以下单词的中文意思：thread n.