Could you please _____ out the trash? [ ]
A. takes
B. to take
C. take
D. taking
答案:C
流行性腮腺炎需与哪些疾病鉴别()
A.腮腺导管阻塞
B.过敏性腮腺炎
C.症状性腮腺肿大
D.化脓性腮腺炎
E.颈部及耳前淋巴结炎
什么是麦芽汁的制备,制备过程中有哪些物质变化?