A:My father asked me to look after my sister at home.
B:My father asked me to take my sister back home.
C:My father asked me to go home together with my sister.
____-____=____
如图中甲、乙、丙、丁各温度计的分度值是1℃,它们的读数分别是: ____、 ____、 ____、 ____ 。
(某校学生就校园周边存在的不安全因素开展了一次主题调查研究,分考察组、调查组、文献组。请你一起参与。
毛细血管非常重要,请根据下面叙述回答下列问题: