头发早白，牙齿脱落，足痿无力，多见于（）
A．肾精不足证
B．肾阴虚证
C．心血虚证
D．血热证
E．气血两虚证
参考答案：A
_____ she couldn’t understand was ______ more and more students showed great interest in
computer games and some are even addicted to them. [ ]
A. That, what
B. What, why
C. What, because
D. Why, that
市场挑战者在具体运作中有哪些策略可以选择？
