在linux中，超级用户root的主目录是（）目录。
A、/
B、/root
C、/home
D、/home/root
参考答案：B
A group of Chinese guests, who are the first ________ from the new agreement on tourism between China and Switzerland, were given a warm welcome in Geneva(日内瓦) last Saturday.
A．benefited
B．benefiting
C．to be benefited
D．to benefit
1994年，为适应社会主义市场经济的形成，我国开始实施新税制。（）
