新建、扩建的民用建筑工程设计前,必须进行建筑场地中()的测定,并提供相应的检测报告。
A.C02浓度
B.有机杂质含量
C.氡浓度
D.TVOC
参考答案:C
小题1:John Brown and Anna Smith are Alan’s ____________.
A.parents
B.grandparents
C.brother and sister
D.uncle and aunt小题2:Mary is Sally’s ____________.
A.aunt
B.mother
C.sister
D.friend小题3:Ann is John Brown’s ____________.
A.son
B.granddaughter
C.grandson
D.daughter小题4:Tom and Kate are Ann’s ____________.
A.cousins
B.uncle and aunt
D.parents小题5:Sally has three ________.
A.aunts
B.brothers
C.sisters
D.Cousins
著名历史学家钱穆曾说:“中国史如一首诗,西洋史如一本剧。西洋史正如几幕精彩的硬地网球赛,中国史则直是一片琴韵悠扬也”。这表明他认为中国历史具有
A.艺术性
B.延续性
C.多变性
D.神秘性