下列哪项X线表现不能作为早期食管癌的诊断依据()
A.局限性粘膜皱襞断裂
B.粘膜呈串珠样改变
C.局限性小的充盈缺损
D.小的溃疡龛影
E.局限性管壁僵硬
参考答案:B
连词成句。
1. to, to, time, bed, go, is, it (陈述句)
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2. off, hat, take, Lucy, your, don't (祈使句)
3. what, is, time, Sydney, in, it (疑问句)
4. you, my, bike, after, can, look (疑问句)
5. Mrs. Li, give, the, please, to, sweater (祈使句)
连续重整催化剂再生过程中使得铂金属凝聚的根本原因是()。
A、超压
B、超温
C、水份
D、粉尘量