According to the first two paragraphs, foods have been genetically altered to ______.
A．taste more delicious
B．cure people's ineffectiveness in immune system
C．promote sales of peanut
D．lower the chance to get allergy

未分类题From Paragraph 3, we can know that RNAi ______.A．can deprive cells of certain mechanismB．can protect cells against foreign genetic materialC．can be effective on 34 kinds of genesD．can cause soybean allergies

未分类题The statement 'make your bone marrow turn cold'(Line 3, Para. 1)implies that______.A．the role of peanut is magicalB．Giddings is shocked and worriedC．Giddings is surprisingD．the role of peanut is rare

未分类题According to the last paragraph, which of the following statements is true?A．Genetically modified foods have been supervised by the authority.B．Genetically modified foods have proved to be safe.C．The nonengineered foods absolutely can be contaminated by the engineered foods.D．The engineered foods are immediately profitable for the food companies.

未分类题By saying that 'London has 32 library authorities but just one police authority,' Desmond Clarke means that______.A．the management of London's police system is less professional than that of London's library systemB．the supervision system of London's libraries is more complete than that of London's police systemC．the organizational structure of London's libraries is more complicated than it is necessaryD．the organizational structure of London's libraries is superior to that of London's police system

未分类题现金流量主要由以下几个部分构成()。