请根据上下文内容，将文中划线部分译成汉语或者英语。

Nowadays, ads are playing an important part in our lives.小题1: 无论我们去哪里都能发现他们。I did some research on advertisements。小题2:我有些重要的信息同大家分享。

One of the aims of ads is to persuade people to buy products or service or believe in an idea. So in this way, maybe the contents of some ads are not true and likely to use words of tricks for us to fall for them. 小题3: So, with so many ads around, we should be smart about what to buy.

小题4: Not all ads play tricks on us though. The ads called public service advertisements may not be the same. They are meant to serve us and teach us and help us to lead better lives. PSAs are often placed in public places for free. They deal with widespread social concerns, which often benefit the public. Such as, 小题5:‘Yes to life, no to drugs’ and ‘Knowledge changes life.’  All of these ads are helpful, and you can learn a lot by following the advice they give.

生物科技和医疗技术的不断发展，使器官移植成为延续人的生命的一种手段。近年来，我国一些专家呼吁对器官移植进行立法，对器官捐献和移植进行规范。对此，下列哪种说法是正确的？

A．科技作为第一生产力，其发展、变化能够直接改变法律

B．法律的发展和变化也能够直接影响和改变科技的发展

C．法律既能促进科技发展，也能抑制科技发展所导致的不良后果

D．科技立法具有国际性和普适性，可以不考虑具体国家的伦理道德和风俗习惯