皮皮学，免费搜题
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搜题
【单选题】
确诊胃癌最可靠的方法A.
消化道钡餐
B.
大便隐血阳性
C.
胃B超
D.
纤维胃镜
E.
胃CT检查
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皮皮学刷刷变学霸
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【多选题】北宋东京商业性楼群的兴盛有哪些历史条件？（）
A.
以流动人口为主要营业对象的酒楼、歌馆等消费娱乐性场所规模扩大
B.
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C.
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D.
流动人口解决住房拥挤的需要
【简答题】In college, Spring Break （春假）is usually associated with the beach, parties and sleepless nights, bringing about relaxation, free time and friends. Students who wish to spend their break doing somethin...
【单选题】In college, Spring Break is usually associated with the beach, parties and sleepless nights,______ about relaxation and free time．
A.
bring
B.
brought
C.
bringing
D.
to bring
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