下列各句中，没有语病的一项是[ ]
A．新生代农民工除了关注工资待遇外，对工作环境和社会保障条件也越发重视，那些环境恶劣、保障缺失的企业，他们将说“不”。
B．防止考试作弊的手段已从道德层面延伸到技术层面，手机探测仪、信息干扰仪、录像监控设备等将对防止考生作弊起到震慑作用。
C．关注民生，构建和谐社会，不仅要有全新的理念和响亮的口号，更重要的是有关部门要从制度上加以保障，为弱势群体多出实招，多办实事。
D．最近国家发改委下调了青霉素、罗红霉素等162个品种、近1300个剂型的药品，平均降幅是调整前规定价格的21%。
答案：C
| Natural flavorings and fragrances are often costly and limited in supply. For example, the vital ingredient in a rose fragrance is extracted from natural rose oil at a cost of thousands of dollars a pound; an identical synthetic substance can be made for 1% of this cost. Since the early twentieth century, success in reproducing these substances has created a new industry that today produces hundreds of artificial flavors and fragrances. Some natural fragrances are easily synthesized; these include vanillin, the aromatic ingredient in vanilla, and benzaldehyde, the aromatic ingredient in wild cherries. Other fragrances, however, have dozens, even hundreds of components. Only recently has it been possible to separate and identify these ingredients by the use of gas chromatography and spectroscopy. Once the chemical identity is known, it is often possible to synthesize them. Nevertheless, some complex substances, such as the aroma of fresh coffee, have still not been duplicated satisfactorily. Many of the chemical compounds making up these synthetics are identical to those found in nature, and are as harmless or harmful as the natural substances. New products must be tested for safety, and when used in food, must be approved by the U.S. Food and Drug Administration. The availability of synthetic flavors and fragrances has made possible a large variety of products, from inexpensive beverages to perfumed soap to used cars with applied "new car odor." |
Which of the following is NOT true according to the last paragraph
A．Synthetic fragrances can be used to make a used car smell like a new one.
B．Synthetic flavors and fragrances have added to the varieties of products.
C．Lemon soap is made out of some delicious lemon.
D．It is likely that a bottle of orange juice is synthesized.