影响微生物发酵因素有______、______、含水量和______。
参考答案：温度 pH 氧
—Jenny did very well in maths exam.
—Oh,yeah! She is _____ maths. [ ]
A. weak in
B. angry with
C. good at
D. afraid of
肛周脓肿引起的肛瘘为
A．患侧甲状腺及峡部全切加对侧次全切除术B．甲状腺局部切除C．激素治疗D．双侧甲状腺全切加放射性碘治疗E．放射治疗
