阅读下列材料：孙中山先生站在朝代前列，“适乎世界之潮流，合乎人群之需要”，大声疾呼“亟拯斯民于水火，切扶大厦之将倾”，高扬反对封建专
澳大利亚人口城市主要集中在（ ）A、东北部 B、中部地区 C、西部 D、东南沿海
有一程序：设一循环变量A，框图如图所示，则输出__________.
能区分胶体和溶液的方法是A.静置，有沉淀现象的是胶体B.有丁达尔现象的是胶体C.能透过滤纸的是溶液D.用肉眼观察，均匀透明的是溶液
The doctors say that good diet, exercise and fresh air, all of which _____ the health and long life. A．lead to B．refer to C．stick to D．contribute to
The people in Ya’an have met lots of difficulties, but they haven’t hope. A. picked up B. given up C. looked for
Remembering names is an important social skill. Here are some ways to master it.Recite and repeat in conversation. When you hear a person’s name，repeat it. Immediately say it to yourself several t
在两个生态系统（草原和森林）的交界处有一个过渡区（生态交错区），生活在这个过渡区中的动物的特点是 A．与两个邻近生态系统相比动物多样
