单项选择题

The danger of transplanting animal organs into humans is that______.

A．it is considered ethically wrong
B．it may bring diseases into human bodies
C．it brings parasites into human bodies
D．it does more harm than good to humans

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热门试题

单项选择题

The first sentence of the passage means______.

A．it is announced by government that money can't buy happiness
B．it is justified that money can't buy happiness
C．it is authoritative that money can't buy happiness
D．it is fair that money can't buy happiness

单项选择题

We can infer that if one is very sad at some time in his life,______.

A．he will be sad all his life
B．he will never be happy
C．he may be happy at other time
D．he may be influenced by the sadness all the time