乙脑病变最严重的部位是()
A.大脑皮质、脊髓、间脑
B.大脑皮质、脊髓、中脑
C.脊髓、间脑、中脑
D.大脑皮质、间脑、中脑
E.大脑皮质、中脑、小脑
参考答案:D
We hung a net round the bed, which could protect us _____ mosquitoes and other insects.
A.from
B.by
C.off
D.under
生物剂量