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【单选题】
某医生使用某三联疗法治疗消化性溃疡120例，共观察到105例有效，有效率为87.5%，故认为此疗法有较好疗效。该分析。A.
未设立对照
B.
正确
C.
样本量不够
D.
未采用盲法
E.
未贯彻随机化原则
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【简答题】Agriculture is one of the most important industries in China which embraces more than 300 million workers. China ‘s agriculture output ranks the first all over the word, and it mainly produce rice, wh...
【单选题】Julie watched the ants as they carried small crumbs down the trail to the anthill. She thinks ants are very hard working and industrious little creatures. They always seemed busy, and you never saw an...
A.
Ants carry many things.
B.
Some ants may bite you.
C.
Ants are hard workers.
D.
Some ants help take care of the queen.
【单选题】下列化合物中最不容易发生傅克反应( Friedel-Crafts )的是
A.
1,3- 二甲苯
B.
C 6 H 5 NO 2
C.
C 6 H 5 COC 2 H 5
D.
C 6 H 5 OCH 3
【简答题】Agriculture is one of the most important industries in China which embraces more than 300 million workers. China ‘s agriculture output ranks the first all over the word, and it mainly produce rice, wh...
【简答题】as industrious as __________
【单选题】(P139)除了生产力与生产关系的矛盾,另一对社会基本矛盾是
A.
社会存在与社会意识的矛盾
B.
人口因素与资源环境的矛盾
C.
通知阶级与被统治阶级的矛盾
D.
经济基础与上层建筑的矛盾
【单选题】As a master's candidate, he was always diligent in his study and research.
A.
instructive
B.
industrious
C.
intelligent
D.
intense
【单选题】As a result of sophisticated technologies, this device has several advantages over like products.
A.
traditional
B.
intelligent
C.
industrious
D.
advanced
相关题目：
【单选题】(P139)除了生产力与生产关系的矛盾,另一对社会基本矛盾是
A.
社会存在与社会意识的矛盾
B.
人口因素与资源环境的矛盾
C.
通知阶级与被统治阶级的矛盾
D.
经济基础与上层建筑的矛盾
参考解析：
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