省、自治区、直辖市旅游饭店星级评定机构承担推荐五星级饭店的责任。
参考答案：对
— How could you ______ my sister so easily in the crowd?
— Because she stood out in her red dress.
A．pick up
B．pick out
C．take up
D．take out
血细胞比容是指血细胞（ ）
A．占全血容积的百分比
B．占全血质量的百分比
C．与血清容积之比
D．与血管容积之比
E．与血浆容积之比
