能发生脑水肿的传染病有().
A.艾滋病
B.流行性出血热
C.流行性乙型脑炎
D.流行性脑脊髓膜炎
E.重症肝炎
参考答案:B, C, D, E
由碎石及卵石经制砂机反复破碎加工至粒径小于()的人工砂,亦称破碎砂.
A、2.36mm
B、1.18mm
C、4.75mm
D、9.50mm
I wish to inform you that as a result of negligence on the part of the lighter Susan when shifting at 0910 hours this morning, the lower platform of the gangway was().
A.break
B.broke
C.breaked
D.broken