脑组织在正常情况下主要利用葡萄糖供能,只有在下述哪种情况下脑组织主要利用酮体()。
A.剧烈运动
B.空腹
C.短期饥饿
D.长期饥饿
E.轻型糖尿病
参考答案:D
In recent years, the economy of our country____________ rapidly. [ ]
A. is increased
B. has increased
C. increased
D. has been increased
营业员收取支票时应仔细检查上述项目是否完整,否则应(),并委婉告诉客户拒收的原因。