椎基底动脉血栓形成不出现以下哪个症状（）。
A.眩晕
B.眼球运动障碍
C.吞咽困难
D.失语
E.交叉性瘫痪
参考答案：D
The details are ______ that they may be hard-pressed to get a deal.
A．so complex
B．enough
C．such complexity
D．too complex
平衡能力差的病人应选用
A．T形单足手杖
B．三足手杖
C．腋杖
D．问号形单足手杖
E．四足手杖
