刚性防水层细石混凝土使用的膨胀剂、减水剂、防水剂等外加剂，应根据不同品种的适用范围及技术要求选定。( )
参考答案：对
词语运用（共5小题，每小题1分，计5分）
用括号中所给单词的适当形式填空。
小题1:Please call me if you have any problems ____________ (work) out．
小题2:Marie Curie received the Nobel Prize ____________ (two) during her life time．
小题3:I think it is ____________ (danger) for children to be close to wild animals．
小题4:The old man has been ____________ (die) since three years ago．
小题5:I know only one of the ____________ (visit)，how about you?
进口货物报关单付汇证明联和出口货物报关单收汇证明联是海关对未实际进出境的货物所签发的证明文件，是银行和国家外汇管理部门办理售汇、付汇和收汇及核销手续的重要依据之一。 ( )
