He worked his head off, but still couldn't finish the task.
查看答案
The grass is always greener on the otherside of the fence.
翻译下列段落:Mrs. White said, "Jane's gone, and we miss her terribly. Nothing we say or do will bring her back. But Amy has her whole life ahead of her. How can she lead a full and happy life if she feels we blame her for her sister's death?"
关于狂犬病病毒的描述正确的是
A. 可引起显著的病毒血症
B. 对皮肤黏膜具有高度亲和力
C. 在人体的潜伏期为2~3天
D. 狂犬病容易治愈
E. 在感染动物的唾液中大量存在
内基小体是
A. 胞核内嗜碱性小体
B. 胞质内嗜碱性小体
C. 胞核内嗜酸性小体
D. 胞核或胞质内嗜碱性小体
E. 胞质内嗜酸性小体