下列哪项不符合Bell征表现()
A.患侧眼裂不易闭合
B.患侧眼裂变大
C.患侧闭眼时易露出白色巩膜
D.患侧额纹消失
E.以上都不对
参考答案:E
The old man gave ______ on behalf of an accused person.
A.word
B.money
C.proof
D.witness.
下列运算正确的是( )
A.x2+x3=2x5
B.(-2x)2•x3=4x5
C.(x-y)2=x2-y2
D.x3y2÷x2y3=xy