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【单选题】
胆固醇是人体必需的生物活性物质,分子式为C 27 H 46 O;一种胆固醇酯是液晶材料,分子式为C 34 H 50 O 2 ,合成这种胆固醇酯的酸是(  )
A.
C 6 H 13 COOH
B.
C 6 H 5 COOH
C.
C 7 H 15 COOH
D.
C 6 H 5 CH 2 COOH
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【单选题】I wonder who wiped the windows so clean. Your mum ______ it, for she was out the whole day.
A.
couldn't do
B.
mustn't do
C.
shouldn't have done
D.
couldn't have done
【简答题】She _____ clean out the storage room last week, but was too much occupied at that time.A. intended to B. was intended to C. had intended to D. has intended to
【单选题】Mary______clean out the guest room last Saturday, but she was too busy that day.
A.
has intended to
B.
was intended to
C.
intended to
D.
had intended to
【简答题】图示体系的多余约束个数为____。【图片】
【单选题】She ____ clean out the space room last week, but was too much occupied at that time.
A.
intended to
B.
was intended to
C.
had intended to
D.
has intended to
【单选题】She ________ clean out the storage room last week, but was too much occupied at that time.
A.
intended to
B.
was intended to
C.
had intended to
D.
has intended to
【简答题】图示体系的多余约束个数为( )【图片】
【单选题】She _____ clean out the spare room last week, but it was too much occupied at that time. [     ]
A.
intended to
B.
was intended to
C.
had intended to
D.
has intended to
【多选题】某甲到其住所地工商局申请个人独资企业登记,工商局工作人员某乙要求其使用工商局统一格式的申请书,并向某甲收取了合理的工本费用之后,某乙告知某甲材料不全并且其中一个材料类似商业广告,要求其修改并按照公示牌列表补交其他材料,但末出具任何书面凭证.某甲在仔细查看后,发现公示牌上确实没有相关内容,觉得某乙是故意刁难,一气之下将公示牌踢坏。双方因此发生争执。根据我国《行政许可法》,下列关于该工商局的做法表述哪...
A.
因为工商局最终并没有受理某甲的申请,因此依法不需要出具书面凭证
B.
该工商局无义务必须公示有关申请的全部材料
C.
某乙必须当场一次性告知某甲需要补正的全部材料
D.
某甲应当对其申请材料实质内容的真实性负责
【简答题】Access 2010 数据库的文件扩展名是
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