太阳会在几十亿年后变成红巨星，其体积会急剧扩大，最远大概足以吞没它周围的哪个行星（）
A.水星
B.金星
C.地球
参考答案：C
David threatened________his neighbour to the police if the damages were not paid.
A．to be reported
B．reporting
C．to report
D．having reported
胃液分析结果为胃酸缺乏可见于()
A．慢性浅表性胃炎
B．慢性A型萎缩性胃炎
C．慢性B型萎缩性胃炎
D．胃癌
E．胃溃疡
