酸的强度取决于它将质子给予水分子的能力,可用酸的离解常数Ka表示。
参考答案:对
根据下列各句句意和空白之后的汉语提示词,在答题卡指定区域的横线上写出对应单词的正确形式,每空只写一词。
小题1:I would be __________(感激) if you could give me some advice.
小题2:I can _________(辨认出) his voice on the phone.
小题3:The _________(坚定的)look on her face shows that she will never give up.
小题4:About 200 people are _________(围困)under the ruins.
小题5:The job and the pay from the government are my _________(回报).
小题6:All the ___________(艺术家)are coming from western countries.
小题7:Her being __________(录取) to the key school made her parents happy.
小题8:___________(就我个人而言), I think our team will win the match.
小题9:I’m ___________(保护) myself from mosquitoes.
小题10:Fans showed their _________(热爱) by waiting outside for hours.
下图表示甲型H1N1流感病毒在人体细胞中的一些变化以及相关反应。有关叙述不正确的是()
A.细胞1和B细胞都属于保留分裂能力的细胞
B.细胞2的作用是使靶细胞裂解暴露病原体
C.合成a所需原料及合成场所都是由人体细胞提供的
D.注射的疫苗可直接刺激细胞3产生大量物质b