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【单选题】
用于鉴别巴比妥类药物的硝化反应,主要是利用该类药物结构中的A.
不饱和碳氮双键
B.
取代基中含有的苯环
C.
取代基中含有的
D.
互变异构中形成的羟基
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举一反三
【单选题】测试导入单选题38请选择下列一叙述正确的句子( )。
A.
选择1 玉兰片应选用质粗、脆嫩者;黄花菜则以色金黄,未开花有光泽、干透者为好
B.
选择2 玉兰片应选用质细,脆嫩者;黄花菜则以色金黄,开花有光泽、干透者为好
C.
选择3 玉兰片应选用质细、脆嫩者;黄花菜则以色金黄,未开花有光泽、干透者为好
D.
选择4 玉兰片应选用质细脆嫩者;黄花菜则以色金黄,开花无光泽、干透者为好
【单选题】In 1905 two more provinces were created.They were（）
A.
Ontario and Quebec
B.
Manitoba and British Columbia
C.
Alberta and Saskatchewan
D.
Newfoundland and Prince Edward Island
【单选题】Health Center 29 Adelaide St. E. Toronto, Ontario Canada M5A 1N0 Vanessa Wendel 1907 Street Notre-Dame Montreal, Quebec Canada H3A 5T8 Dear Ms. Wendel: January 2nd, 20__ I understand that you are in c...
A.
To request sponsorship money
B.
To explain about a fundraiser
C.
To order some brochures
D.
To ask for advice about exercise
【单选题】The particular culture of an area is generally a reflection of the dominant language; thus, French influences are confined largely to ______ and New Brunswick.
A.
British Columbia
B.
Ontario
C.
Quebec
D.
Vancouver
【单选题】听力原文： The climate of the west coast is the most moderate in Canada. Summers are coast and fairly dry and winters are mild, cloudy and wet. Even in mid-winter, average temperatures are usually above fr...
A.
The Arctic coast.
B.
The west coast.
C.
The east coast.
D.
The central plain.
【单选题】某公司原是一家以生产经营床上用品为主的大型企业。该公司生产的床单和枕巾从 上个世纪60 年代开始就受到欢迎,但近年来效益持续下滑。据分析,困扰公司高层领导的问题主要是:公司主要产品的市场需求发生了重大变化;公司在产品开发、制造、销售等环节中存在严重的沟通障碍;对主要竞争者的行为缺乏有效的反应。据此,公司高层管理部门当前首先应该采取的措施为( )。
A.
重新明确公司业务定位
B.
进行组织机构调整
C.
加强公司产品开发能力
D.
加强人力资源管理
【单选题】CanadaCanada, second largest country in the world in area (after Russia), occupying roughly the northern two-fifths of the continent of North America.Despite Canada’s great size, it is one of the worl...
A.
New France
B.
Quebec
C.
Canada
D.
The Dominion of Canada
【判断题】Canada had Quebec, Ontario, Newfoundland and Nova Scotiawhen it first became a political entity.
A.
正确
B.
错误
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