It often takes __________ hour to cook.[ ]
A. an
B. the
C. a
D. /
答案：A
适合手术器械、物品及敷料的灭菌方法是（）。
A.紫外线消毒
B.甲醛溶液
C.碘伏
D.70％的酒精溶液
E.高压蒸汽灭菌法
States should respect international law even if some people are skeptical about its power to be enacted.
A．True
B．False
