双胍类治疗糖尿病的不良反应主要是
A．低血糖B．胃肠道反应C．水肿D．心律失常
参考答案：B
The question has been raised at the meeting__________each member country should share the expenses of the committee.
A．which
B．if
C．what
D．whether
冰水沉积作用？冰水堆积地貌类型？
