单选题:请在(77)处填上最佳答案。 题目分类:英语四级 题目类型:单选题 查看权限:VIP 题目内容: 请在(77)处填上最佳答案。 A.focuses B.bases C.depends D.takes 参考答案: 答案解析:
下列有关生物学常识的说法正确的是( )。 下列有关生物学常识的说法正确的是( )。 A.松鼠尾巴发挥着保暖、平衡身体的作用 B.萤火虫会发光是因为在它们的腹部末端有发光器 C.打呵欠是一种深呼吸动作, 分类:英语四级 题型:单选题 查看答案
Efficient air service has been made available through modern Efficient air service has been made available through modern technology. 分类:英语四级 题型:单选题 查看答案
Which of the following is the conclusion the author draws at Which of the following is the conclusion the author draws at the end of the arti 分类:英语四级 题型:单选题 查看答案