第9题: [单项选择]分泌盐酸的是() A. 主细胞 B. 壁细胞 C. 黏液细胞 D. G细胞 E. 嗜银细胞 参考答案:B 答案解析:主细胞分泌胃蛋白酶原和凝乳酶原;壁细胞分泌盐酸和抗贫血因子;黏液细胞分泌碱性黏液,有保护黏膜、对抗胃酸腐蚀的作用;胃窦部有G细胞分泌促胃液素;胃底部尚有功能不明的嗜银细胞。
Health experts have discovered that adding low-calorie vegetable broth to the start of a meal can actually help to ______ . 参考答案:lose weight 答案解析:[听力原文]6-10
A bowl of soup a day could keep the pounds at bay. Health experts have discovered th