A：若a＞b，则c﹣a＞c﹣b
B：投一枚硬币10次，有8次正面朝上，则第11次投硬币反面朝上的机会较大
C：点M（x1，y1），点N（x2，y2）都在反比例函数y= 1x 的图象上，若x1＜x2，则y1＞y2
D：甲、乙两射击运动员分别射击10次，他们射击成绩的方差分别为S 甲2 =3.2，S 乙2 =2.4，这过程中乙发挥比甲更稳定
1871年《德意志帝国宪法》规定，帝国议会的议员不能因为议员身份而领取任何薪俸和报酬。这反映了德意志帝国（ ）
读课文《人民解放军百万大军横渡长江》，“不料正是汤恩伯到芜湖的那一天，东面防线又被我军突破了。”句中，“不料”应怎样理解？
This is a photo of Mr Black's family. The man with glasses（眼镜）is Mr Black, the father. The woman is the mother. They have a son and a daughter. The son is behind（在……后面）Mr Black. His name is Jack. He's 14. Kate is Jack's sister. She is 12. Jack and Kate are in the same school, but they are in different（不同的）grades. Jack is in Grade Three and Kate's in Grade One. They are good students.
下列有关水的叙述正确的是（）
