其结果可判定为阴性者为:
A.水痘B.传染性软疣C.扁平疣D.天疱疮E.带状疱疹
参考答案:E
分解因式:
(1)4x3y+4x2y2+xy3;
(2)9x3-25xy2;
(3)-3x+6x2-3x3.
Can you make sure ________ he will come here today, Linda?
A.that
B.which
C.whether
D.what