（20分）有机物OPP是用途十分广泛的有机化工产品，广泛应用于杀菌防腐、印染助剂、表面活性剂、稳定剂和阻燃剂等领域。以烃A为原料可合成OPP：

已知醛或酮在碱催化下可发生如下反应：

（1）①烃A是无色、带有特殊气味的液体。经实验测定，烃A中碳元素和氢元素的质量比为。烃A的结构简式为            。

②（填操作名称）       是分离，提纯液态有机物的常用方法，烃A就是用该方法从煤焦油中得到的基本化工原料。

（2）烃A生成有机物B的反应类型为            。

（3）①有机物C能与NaOH反应，反应的化学方程式为                  。

②有机物C与浓溴水反应生成白色沉淀，可用于有机物C的定性检验和定量测定，反应的化学方程式为           。

（4）有机物C₆H₁₀O的红外光谱图显示分子中含有C=O键，但是C₆H₁₀O不能发生银镜反应。C₆H₁₀O的结构简式为            。

（5）有机物D的结构简式为            。

（6）有机物D在钯催化剂催化下进行脱氢反应得到OPP，OPP的红外光谱图显示分子中有O—H键和苯环。OPP的一种同分异构体E和OPP具有相同的基团，其核磁共振氢谱有6个峰，峰面积之比为1：2：2：2：2：1，有机物E的结构简式为           。

The pharmaceutical industry argues that because new drugs will not be developed unless heavy development costs can be recouped in later sales, the current 20 years of protection provided by patents should be extended in the case of newly developed drugs. However, in other industries newproduct development continues despite high development costs, a fact that indicates that the extension is unnecessary. Which of the following, if true, most ply supports the pharmaceutical industry’s argument against the challenge made above

A．No industries other than the pharmaceutical industry have asked for an extension of the 20-year limit on patent protection.

B．Clinical trials of new drugs, which occur after the patent is granted and before the new drug can be marketed, often now take as long as 10 years to complete.

C．There are several industries in which the ratio of research and development costs to revenues is higher titan it is in the pharmaceutical industry.

D．An existing patent for a drug does not legally prevent pharmaceutical companies from bringing to market alternative drugs, provided they are sufficiently dissimilar to the patented drug.

E．(E) Much recent industrial innovation has occurred in products—for example, in the computer and electronics industries—for which patent protection is often very ineffective.