治疗腹泻的非处方药
肠道菌群失调性腹泻
A．胰酶B．黄连素C．胃蛋白酶D．双歧三联活菌E．双八面蒙脱石
参考答案：D
What’s the language ____ in Germany? [ ]
A. speaking
B. spoken
C. be spoken
D. to speak
从细菌生长繁殖的条件入手，如何进行细菌的人工培养？
