坠落时足与臀部着地,脊髓损伤最常见的脊髓水平为()
A.C1~2
B.T10~12
C.L1~2
D.C5~7
E.L4~5
参考答案:C
The plane will take off _________ three hours. I must get to the airport right now.[ ]
A. in
B. for
C. on
D. at
口腔念珠菌病致病菌中最主要、毒力最强的病原菌为()
A.高里念珠菌
B.假热带念珠菌
C. * * 滑念珠菌
D.热带念珠菌
E.白色念珠菌