脊髓灰质炎所导致瘫痪部位多见于()
A.双上肢软瘫
B.双下肢软瘫
C.双手受累重
D.单足受累重
E.单侧下肢软瘫
参考答案:E
不等式|x+2|-|x|≤1的解集是________.
Many of the students turned a deaf ear to his advice, _______ they knew it to be valuable. [ ]
A. as if
B. now that
C. even though
D. so that