【单选题】弹性体和塑性体改性沥青防水卷材的抽样数量规定:在每批产品中随机抽取( )卷进行单位面积质量、面积、厚度与外观质量检查。在上述检查合格的卷材中随机抽取( )卷进行材料性能试验。
【单选题】I didn’t know his telephone number. ______ it, then I ______.
A.
Had I known; would ring him up
B.
Should I know; would have rung him up
C.
If I knew; would ring him up
D.
Had I known; would have rung him up
【单选题】We didn’t know his telephone number, otherwise we ________ him.
【判断题】一般位置平面对三个投影面都平行,其三面投影都反映实形。( )
【单选题】弹性体和塑性体改性沥青防水卷材的抽样组批规定为:同一类型、同一规格卷材( )m2为一批,不足上述数量亦可作为一批。
【单选题】I didn't know his telephone number. ____ it , I ____ then
A.
Had I known , would ring him up
B.
Should I know , would have rung him up
C.
If I knew ; would ring him up
D.
Had I known ; would have rung him up
【单选题】如果导游人员错接了本旅行社另一位导游人员应接的旅游团,经旅行社领导同意后,不再交换旅游团,但必须( )。
【判断题】一般位置平面对三个投影面都平行,其三面投影都反映实形。( )
【单选题】---Who called just now? ---I don’t know because I didn’t______ his voice.