溶剂型涂料贮运和保管环境温度不宜低于______℃。
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Tom didn't look happy, because _______.
A. his team finally lost the game.
B. his mother didn't watch the game.
C. basketball was hit by the Stars finally.
D. his basketball was hit near the end of the game.
无机高效防水粉是由水硬性无机胶凝材料与______调合后具防水防渗性能。
A. 汽油
B. 水
C. 柴油
D. 乳液
防水涂料施工时，涂层间的接茬，存每遍涂刷时应退茬50～100mm，接茬时应超过______mm，避免在搭接处发生渗漏。
A. 30～80
B. 50～100
C. 100～150
D. 150～200
快挥发性冷底子油，喷涂在终凝后的水泥基层上干燥时间为______h。
A. 2～4
B. 4～8
C. 1～2
D. 5～10
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