（）与（）是一个事物的两个方面，应同步进行。
参考答案：制度建设；制度改革
— Who would you like to ____ to the cinema with you this evening?
— No one. I would rather stay home this evening.
A．have go
B．had gone
C．going
D．to go
低钾血症的病人，补钾后病情仍无改善时，应首先考虑缺乏
A．镁
B．磷
C．氯
D．钙
E．钠
