Scientists would soon be able to _______ human genes to control the ageing process.

do the jobs that Europe’s ageing population no longer wants to do.

1. We are accused frequently of doing nothing about the ageing population and the ________ hole in pension funds.

Which following statements are correct about ageing? （choose all of the appropriate choices） A: people with 60 years or over B: a universal human experience C: a dynamic state of existence that changes with one's perspective D: based on societal views of ageing E: based on cultural beliefs about the meaning of being old

The aged population is currently at its highest level in human history. The United Nations predicts the rate of population ageing in the 21st century will exceed that of the previous century.

The text mainly talks about ______. A: men's heart cells B: women's ageing process C: the gender difference D: hearts and long life

Compared with the plate-type rubber bearing,which of the following is not the advantage of the pot-type rubber bearing. A: great bearing capacity B: large translational displacement C: flexible rotation D: ageing problem

Leading<br/>stress researcher Kal Garruth claims that stress chemicals directly<br/>____ testosterone production in men, causing such classic signs of<br/>ageing as constant tiredness. A: deem B: linger C: inhibit

The professor’s findings show that () A: our brains shrink as we grow old B: the front section of the brain does not shrink C: seventy-year-olds have better brains than sixty-year-olds D: thinking can slow down the process of ageing

Tinker believes that the major cause for the lower living standard of today's under-thirties is that______. A: they have to face lower job security B: they are living in an ageing society C: they have to take care of the old D: their expectations go beyond their abilities