—When can you get my car repaired? I need it tomorrow morning. —It ______ be ready by 8:00 A. can B. need C. might D. should
移植别人的器官到患者体内之前需要配型,否则不易成活,从免疫学概念分析,配型主要是寻找与患者器官相同或相类似的 A.受体
Of the two lectures, the first was by far _____, partly because the speaker had such a dynamic style. A. the best B. better C. the better
—How far is it from your home to school? —It’s about twenty ______ walk. A. minute’s B. minutes’
过 零 丁 洋 文天祥 辛苦遭逢起一经,干戈寥落四周星。 山河破碎风飘絮,身世浮沉雨打萍。 惶恐滩头说惶恐,零丁洋里叹零丁。 人生自古谁无死?留
中和反应在生产和生活中有着广泛的应用。下列应用与中和反应原理一定无关的是( ) A.服用含氢氧化铝的药物治疗胃酸过多症 B.用稀硫酸处理印染厂
从南极到北极,纬度变化的规律是( ) A.由大变小再增大 B.逐渐增大 C.逐渐减小 D.由小变大再变小