关于穆罕默德·阿里改革的背景是(      )

①马木路克反对势力仍很强大   ②西方殖民者的入侵

③连年的战争导致经济十分落后 ④军事实力弱小

制作临时装片时，让盖玻片的一边先接触水滴，然后再轻轻地盖上，其主要目的是 （  ）

    My name is Maggie.I am a 13-year-old Canadian girl. I live in Toronto. It's a very big city. I can speak English and French. I have classes from 8:00 a.m. to 2:40 p.m. I have lunch at school. Many girls love playing volleyball after school, but I like swimming. I have a big family, my father, my mother and two brothers. I think China is a great country. I want a Chinese pen pal.

    Please sendemails to me if you want to be my pen pal. My email address is maggie13@yahoo.com.

95年前，一群青年学生发出了“外争国权，内惩国贼”的怒吼，掀起了一场彻底的、不妥协的爱国运动。这场运动爆发的直接原因是（    ）