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______.
单项选择题To solve the present social problems the author suggests that we should______.
单项选择题From the passage we can infer that real happiness of life belongs to ______.