Upon the survey it is found the deck control valve of the fore peak tank could not be().
A. tighted formally
B. shut tightly
C. combined properly
D. closed suitably
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依据《湖南省住宅工程质量通病防治技术规程》DBJ43/T306-2014第5.1.1条,厨房、卫生间和有防水要求的楼地面面层应采用不吸水、易冲洗、防滑的面层材料,且应低于相邻楼地面(),并设排水坡,坡向地漏。
A. 30mm
B. 40mm
C. 50mm
D. 60mm
芽孢决定了细菌的()特性。
A. 抗吞噬
B. 细菌在体内的扩散能力
C. 细菌的产毒性
D. 细菌的耐热性