问题补充：
In October, the World Health Organization warned that the global financial crisis mightworsening mental health, with fear of job loss becoming the biggest source of psychological pressure for China’s white-collar workers.
A. turn to
B. lead to
C. refer to
D. amount to
答案：
A. turn to
(答案→)B. lead to
C. refer to
D. amount to
解析：考查短语动词辨析。lead to导致。turn to求助于，转向。refer to涉及（指的是，提作，参考，适用于）。amount to总共达到（总计，等于），相当于。
