【单选题】细菌经培养一段时间后,细菌的繁殖速度愈来愈慢,细菌的死亡数超过活菌数,以致细菌形态发生改变,此阶段属细菌的()。
【单选题】细菌经培养一段时间后,细菌的繁殖速度愈来愈慢,细菌的死亡数超过活菌数,以致细菌形态发生改变,此阶段属细菌的
【单选题】某板块端支座负筋为A8@100(2),伸入板内的长度为800,板厚为120,板保护层厚度为15,梁保护层厚度为25,梁的截面尺寸为300*400,则该支座负筋一根的长度为
【单选题】当有人向你说“When were you born?”时,你可以用“ ”回答。
【简答题】—What was the weather like when you were on holiday? —Fine.It__________sunny every day until Wednesday. A.is B.was C.will be D.would be