糖化血红蛋白水平可反映多长时间内的平均血糖水平（）
A.3～4个月
B.近2～3个月
C.近10d
D.1个月
E.6个月
参考答案：B
The old man _______ in Shanghai, but he _______ in Jiangyan now. [ ]
A. be born; live
B. was born ; live
C. is born; lives
D. was born; lives
She gave me a list in case I _____ forget what to buy. [ ]
A. must
B. should
C. might
D. would
