roll up one's
A. sleeves
B. boot
C. shoes
D. cloth
with a fine-toothed
A. comb
B. boot
C. belt
D. sleeve
Match each item with its equivalent description.( )1. Telephone()2. Computer()3. Copier()4. Printer()5. Fax
高致病性禽流感、鸡新城疫血凝和血凝抑制试验采用( )%的红细胞。
A. 0.25
B. 0.5
C. 0.75
D. 1
E. 1.5