What is the author's attitude toward the corporate physical fitness program
A) Objective. C) Supportive.
B) Indifferent. D) Oppositive.

单项选择题According to statistics, the American industry annually loses______ owing to its employees’backaches.A) $1,000 million C) $1,225 millionB) $ 225 million D) at least $ 25 billion

单项选择题In the second paragraph the author uses an analogy (类比) that assumes that general principles are similar to______.A) the wood C) the treesB) technical details D) fixed laws