单项选择题A．to buyB．buyingC．having boughtD．from buying

单项选择题A．onB．byC．atD．against

单项选择题The true cause of the anxiety of the workers is that______.

单项选择题By a well-oiled cog in the machinery the author intends to render the idea that man is ______.

单项选择题The author's attitude towards industrialism might best be summarized as one of______.