Why does Facebook make changes to its rules according to Elliot Schrage？
A. To render better service to its users.
B. To conform. to the Federal guidelines.
C. To improve its users' connectivity.
D. To expand its scope of business.
水不溶性包衣材料是
A. 聚乳酸
B. 硅橡胶
C. 卡波姆
D. 明胶邛可拉伯胶
E. 醋酸纤维素
A. as long as B. as far asC. as well as D. as soon as
A. as long as
B. as far as
C. as well as
D. as soon as
某物业公司目前实际在管项目规模为120万m2。其中，多层住宅30万mz，占比为25％。“25％”是()。
A. 结构相对指标
B. 比较相对指标
C. 比例相对数
D. 动态相对数
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