正常情况下，以下物质属于人体内环境组成成分的是（ ） ①血红蛋白 ②葡萄糖 ③无机盐 ④激素 ⑤尿素
“逆水行舟，一篱不可放缓；滴水穿石，一滴不可弃滞。”这句话蕴含的哲理是（ ）
用所给单词的适当形式填空。
—I hear that a modern church is to be built near our school.
—I'm afraid that it doesn't ________the surroundings.
